KR100426030B1 - 락톤계 당화합물에서의 키랄성 전환방법 - Google Patents
락톤계 당화합물에서의 키랄성 전환방법 Download PDFInfo
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- KR100426030B1 KR100426030B1 KR10-2000-0042115A KR20000042115A KR100426030B1 KR 100426030 B1 KR100426030 B1 KR 100426030B1 KR 20000042115 A KR20000042115 A KR 20000042115A KR 100426030 B1 KR100426030 B1 KR 100426030B1
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- Prior art keywords
- formula
- reaction
- compound
- lactone
- ethyl acetate
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 66
- 150000001875 compounds Chemical class 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 23
- 150000002596 lactones Chemical class 0.000 title description 4
- -1 lactone compound Chemical class 0.000 claims abstract description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 14
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 claims abstract description 8
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 102
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 claims description 32
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 30
- 239000002904 solvent Substances 0.000 claims description 30
- UAOMVDZJSHZZME-UHFFFAOYSA-N diisopropylamine Chemical compound CC(C)NC(C)C UAOMVDZJSHZZME-UHFFFAOYSA-N 0.000 claims description 12
- 239000012359 Methanesulfonyl chloride Substances 0.000 claims description 11
- QARBMVPHQWIHKH-UHFFFAOYSA-N methanesulfonyl chloride Chemical compound CS(Cl)(=O)=O QARBMVPHQWIHKH-UHFFFAOYSA-N 0.000 claims description 11
- PSHKMPUSSFXUIA-UHFFFAOYSA-N n,n-dimethylpyridin-2-amine Chemical compound CN(C)C1=CC=CC=N1 PSHKMPUSSFXUIA-UHFFFAOYSA-N 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 10
- 150000003335 secondary amines Chemical class 0.000 claims description 9
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 6
- RWRDLPDLKQPQOW-UHFFFAOYSA-N Pyrrolidine Chemical compound C1CCNC1 RWRDLPDLKQPQOW-UHFFFAOYSA-N 0.000 claims description 6
- 125000000051 benzyloxy group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])O* 0.000 claims description 6
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 claims description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 4
- 229940043279 diisopropylamine Drugs 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 4
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical class 0.000 claims description 2
- 125000000623 heterocyclic group Chemical group 0.000 claims description 2
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 2
- UUEVFMOUBSLVJW-UHFFFAOYSA-N oxo-[[1-[2-[2-[2-[4-(oxoazaniumylmethylidene)pyridin-1-yl]ethoxy]ethoxy]ethyl]pyridin-4-ylidene]methyl]azanium;dibromide Chemical compound [Br-].[Br-].C1=CC(=C[NH+]=O)C=CN1CCOCCOCCN1C=CC(=C[NH+]=O)C=C1 UUEVFMOUBSLVJW-UHFFFAOYSA-N 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 125000001424 substituent group Chemical group 0.000 claims description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 2
- 125000003944 tolyl group Chemical group 0.000 claims description 2
- PYMYPHUHKUWMLA-MROZADKFSA-N aldehydo-L-ribose Chemical compound OC[C@H](O)[C@H](O)[C@H](O)C=O PYMYPHUHKUWMLA-MROZADKFSA-N 0.000 abstract description 8
- HMFHBZSHGGEWLO-UHFFFAOYSA-N alpha-D-Furanose-Ribose Natural products OCC1OC(O)C(O)C1O HMFHBZSHGGEWLO-UHFFFAOYSA-N 0.000 abstract description 8
- PYMYPHUHKUWMLA-UHFFFAOYSA-N arabinose Natural products OCC(O)C(O)C(O)C=O PYMYPHUHKUWMLA-UHFFFAOYSA-N 0.000 abstract description 8
- GZCGUPFRVQAUEE-KAZBKCHUSA-N aldehydo-D-talose Chemical compound OC[C@@H](O)[C@H](O)[C@H](O)[C@H](O)C=O GZCGUPFRVQAUEE-KAZBKCHUSA-N 0.000 abstract description 5
- BUBVLQDEIIUIQG-UHFFFAOYSA-N 3,4,5-tris(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-2-one Chemical compound C=1C=CC=CC=1COC1C(OCC=2C=CC=CC=2)C(OCC=2C=CC=CC=2)C(=O)OC1COCC1=CC=CC=C1 BUBVLQDEIIUIQG-UHFFFAOYSA-N 0.000 abstract description 4
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 abstract description 4
- 125000000467 secondary amino group Chemical class [H]N([*:1])[*:2] 0.000 abstract 1
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 24
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 16
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 8
- 238000004821 distillation Methods 0.000 description 8
- 239000010410 layer Substances 0.000 description 8
- 239000012044 organic layer Substances 0.000 description 8
- 238000010898 silica gel chromatography Methods 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000000543 intermediate Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000000376 reactant Substances 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- 239000002777 nucleoside Substances 0.000 description 2
- XYEOALKITRFCJJ-UHFFFAOYSA-N o-benzylhydroxylamine Chemical compound NOCC1=CC=CC=C1 XYEOALKITRFCJJ-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 description 2
- LDHBSABBBAUMCZ-SDHSZQHLSA-N (3s,4r,5r)-3,4-bis(phenylmethoxy)-5-(phenylmethoxymethyl)oxolan-2-one Chemical compound C([C@H]1OC([C@H]([C@@H]1OCC=1C=CC=CC=1)OCC=1C=CC=CC=1)=O)OCC1=CC=CC=C1 LDHBSABBBAUMCZ-SDHSZQHLSA-N 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 238000006751 Mitsunobu reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000005456 alcohol based solvent Substances 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000008064 anhydrides Chemical group 0.000 description 1
- 230000003602 anti-herpes Effects 0.000 description 1
- GBBJCSTXCAQSSJ-XQXXSGGOSA-N clevudine Chemical compound O=C1NC(=O)C(C)=CN1[C@@H]1[C@H](F)[C@@H](O)[C@H](CO)O1 GBBJCSTXCAQSSJ-XQXXSGGOSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 239000006184 cosolvent Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000010353 genetic engineering Methods 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 208000002672 hepatitis B Diseases 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000002547 new drug Substances 0.000 description 1
- 102000039446 nucleic acids Human genes 0.000 description 1
- 108020004707 nucleic acids Proteins 0.000 description 1
- 239000002773 nucleotide Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/26—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D307/30—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D307/32—Oxygen atoms
- C07D307/33—Oxygen atoms in position 2, the oxygen atom being in its keto or unsubstituted enol form
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H1/00—Processes for the preparation of sugar derivatives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
- C07D309/16—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D309/28—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D309/30—Oxygen atoms, e.g. delta-lactones
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D493/00—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
- C07D493/02—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
- C07D493/04—Ortho-condensed systems
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D493/00—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
- C07D493/02—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
- C07D493/10—Spiro-condensed systems
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Molecular Biology (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims (6)
- 하기 화학식 1의 화합물을 하기 화학식 2의 2차 아민과 반응시키고, 계속해서 하기 화학식 3의 설포닐기 함유 화합물과 반응시킴을 특징으로 하여 화학식 1의 화합물에서 4번 위치 또는 5번 위치 탄소의 키랄성을 전환시키는 방법.[화학식 1][화학식 2][화학식 3]상기식에서n 은 0 또는 1의 수를 나타내고,R1, R2및 R3은 각각 독립적으로 수소, 직쇄 또는 측쇄 C1-C6-알콕시, C2-C6-카보닐옥시, 벤조일옥시 또는 벤질옥시를 나타내거나, 이중 두 치환체가 함께 결합하여 이소프로필리덴디옥시 또는 사이클로헥실리덴디옥시를 나타내며,Q 는또는를 나타내고, 여기에서 R4및 R5는 각각 독립적으로 수소, 직쇄 또는 측쇄 C1-C6-알콕시, C2-C6-카보닐옥시, 벤조일옥시 또는 벤질옥시를 나타내거나, 함께 결합하여 이소프로필리덴디옥시 또는 사이클로헥실리덴디옥시를 나타내며, R6는 직쇄 또는 측쇄 C1-C6-알콕시, C2-C6-카보닐옥시, 벤조일옥시 또는 벤질옥시를 나타내고,R' 및 R" 는 동일하거나 상이하며 각각 독립적으로 직쇄 또는 측쇄 C1-C6-알킬을 나타내거나, 이들이 부착된 질소원자와 함께 결합하여 4- 내지 7-원 포화 헤테로환을 형성할 수 있으며,R 은 직쇄 또는 측쇄 C1-C6-알킬, 페닐 또는 톨릴을 나타내고,L 은 할로겐 또는을 나타낸다.
- 제1항에 있어서, 추가로 에틸아세테이트, 메틸렌클로라이드 및 테트라하이드로푸란 중에서 선택된 1종이상의 용매 존재하에 반응이 수행되는 방법.
- 제1항에 있어서, 화학식 2의 2차 아민으로서 디메틸아민, 디에틸아민, 디이소프로필아민, 피롤리딘 및 피페리딘 중에서 선택된 1종 이상을 사용하는 방법.
- 제1항에 있어서, 화학식 3의 설포닐기 함유 화합물로서 메탄설포닐클로라이드를 사용하는 방법.
- 제1항 또는 제4항에 있어서, 메탄설포닐클로라이드와 함께 반응 보조제로서 트리에틸아민과 디메틸아미노피리딘을 사용하는 방법.
- 제1항에 있어서, 반응을 -5℃ 내지 30℃의 온도범위에서 수행하는 방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2000-0042115A KR100426030B1 (ko) | 2000-07-22 | 2000-07-22 | 락톤계 당화합물에서의 키랄성 전환방법 |
US09/908,884 US6448415B1 (en) | 2000-07-22 | 2001-07-20 | Chirality conversion method in lactone sugar compounds |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2000-0042115A KR100426030B1 (ko) | 2000-07-22 | 2000-07-22 | 락톤계 당화합물에서의 키랄성 전환방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20020008997A KR20020008997A (ko) | 2002-02-01 |
KR100426030B1 true KR100426030B1 (ko) | 2004-04-03 |
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KR10-2000-0042115A KR100426030B1 (ko) | 2000-07-22 | 2000-07-22 | 락톤계 당화합물에서의 키랄성 전환방법 |
Country Status (2)
Country | Link |
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US (1) | US6448415B1 (ko) |
KR (1) | KR100426030B1 (ko) |
Families Citing this family (20)
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KR100440461B1 (ko) * | 2000-08-19 | 2004-07-15 | (주) 한켐 | 1,4-락톤을 이용한 l-리보오스의 제조 방법 |
ES2422290T3 (es) * | 2005-12-23 | 2013-09-10 | Idenix Pharmaceuticals Inc | Procedimiento para preparar un producto intermedio sintético para la preparación de nucleósidos ramificados |
CA2699285C (en) * | 2007-09-10 | 2016-12-13 | Ahmed F. Abdel-Magid | Process for the preparation of compounds useful as inhibitors of sodium-dependent glucose transporter (sglt) |
US9056850B2 (en) * | 2008-10-17 | 2015-06-16 | Janssen Pharmaceutica N.V. | Process for the preparation of compounds useful as inhibitors of SGLT |
US20110009347A1 (en) | 2009-07-08 | 2011-01-13 | Yin Liang | Combination therapy for the treatment of diabetes |
JP5658751B2 (ja) | 2009-07-10 | 2015-01-28 | ジヤンセン・フアーマシユーチカ・ナームローゼ・フエンノートシヤツプJanssen Pharmaceutica Naamloze Vennootschap | 1−(β−D−グルコピラノシル)−4−メチル−3−[5−(4−フルオロフェニル)−2−チエニルメチル]ベンゼンのための結晶化方法 |
AU2010306797B2 (en) * | 2009-10-14 | 2014-11-27 | Janssen Pharmaceutica Nv | Process for the preparation of compounds useful as inhibitors of SGLT2 |
EP2388257A1 (en) | 2010-05-20 | 2011-11-23 | LibraMedicina, Inc. | Process for preparing substituted 1-O-acyl-2-deoxy-2-fluoro-4-thio-ß-D-arabinofuranoses |
EP2799432B1 (en) | 2009-12-18 | 2016-09-21 | Libramedicina, Inc. | Process for preparing substituted 1-O-acyl-2-deoxy-2-fluoro-4-thio-beta-D-arabinofuranoses |
KR101931209B1 (ko) | 2010-05-11 | 2018-12-20 | 얀센 파마슈티카 엔.브이. | Sglt의 억제제로서 1-(베타-d-글루코피라노실)-2-티에닐-메틸벤젠 유도체를 포함하는 약학 제형 |
ES2586846T3 (es) | 2011-04-13 | 2016-10-19 | Janssen Pharmaceutica, N.V. | Proceso de preparación de compuestos útiles como inhibidores de SGLT2 |
TWI542596B (zh) | 2011-05-09 | 2016-07-21 | 健生藥品公司 | (2s,3r,4r,5s,6r)-2-(3-((5-(4-氟苯基)噻吩-2-基)甲基)-4-甲基苯基)-6-(羥甲基)四氫-2h-哌喃-3,4,5-三醇之l-脯胺酸及檸檬酸共晶體 |
DK2832740T3 (da) | 2012-03-28 | 2019-07-15 | Fujifilm Corp | SALT AF 1-(2-DEOXY-2-FLUOR-4-THIO-beta-D-ARABINOFURANOSYL)CYTOSIN |
RU2633355C2 (ru) | 2012-08-13 | 2017-10-12 | Фуджифилм Корпорэйшн | СИНТЕТИЧЕСКОЕ ПРОМЕЖУТОЧНОЕ СОЕДИНЕНИЕ 1-(2-ДЕЗОКСИ-2-ФТОР-4-ТИО-β-D-АРАБИНОФУРАНОЗИЛ)ЦИТОЗИНА, СИНТЕТИЧЕСКОЕ ПРОМЕЖУТОЧНОЕ СОЕДИНЕНИЕ ТИОНУКЛЕОЗИДА И СПОСОБ ИХ ПОЛУЧЕНИЯ |
JP6175553B2 (ja) | 2014-02-18 | 2017-08-09 | 富士フイルム株式会社 | チオラン骨格型糖化合物の製造方法およびチオラン骨格型糖化合物 |
JP6204223B2 (ja) | 2014-02-19 | 2017-09-27 | 富士フイルム株式会社 | チオピラノース化合物等の製造方法 |
TWI678373B (zh) | 2014-10-31 | 2019-12-01 | 日商富士軟片股份有限公司 | 硫代核苷衍生物或其鹽及醫藥組合物 |
US20170071970A1 (en) | 2015-09-15 | 2017-03-16 | Janssen Pharmaceutica Nv | Co-therapy comprising canagliflozin and phentermine for the treatment of obesity and obesity related disorders |
KR102198656B1 (ko) | 2016-08-31 | 2021-01-05 | 후지필름 가부시키가이샤 | 항종양제, 항종양 효과 증강제 및 항종양용 키트 |
AU2018404329B2 (en) | 2018-01-29 | 2021-09-09 | Fujifilm Corporation | Antitumor agent for biliary tract cancer and method for treating biliary tract cancer |
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---|---|---|---|---|
WO1998011064A1 (en) * | 1996-09-12 | 1998-03-19 | Rhone-Poulenc Rorer Pharmaceuticals Inc. | Stereospecific preparation of chiral 1-aryl- and 1-heteroaryl-2-substituted ethyl-2-amines |
WO1998039347A2 (en) * | 1997-03-05 | 1998-09-11 | The Regents Of The University Of California | Synthesis of l-ribose and 2-deoxy l-ribose |
US5936127A (en) * | 1997-01-13 | 1999-08-10 | The Penn State Research Foundation | Asymmetric synthesis and catalysis with chiral heterocyclic compounds |
WO1999061648A1 (fr) * | 1998-05-27 | 1999-12-02 | Mitsubishi Chemical Corporation | Procede de production de l-ribose |
-
2000
- 2000-07-22 KR KR10-2000-0042115A patent/KR100426030B1/ko active IP Right Grant
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2001
- 2001-07-20 US US09/908,884 patent/US6448415B1/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998011064A1 (en) * | 1996-09-12 | 1998-03-19 | Rhone-Poulenc Rorer Pharmaceuticals Inc. | Stereospecific preparation of chiral 1-aryl- and 1-heteroaryl-2-substituted ethyl-2-amines |
US5936127A (en) * | 1997-01-13 | 1999-08-10 | The Penn State Research Foundation | Asymmetric synthesis and catalysis with chiral heterocyclic compounds |
WO1998039347A2 (en) * | 1997-03-05 | 1998-09-11 | The Regents Of The University Of California | Synthesis of l-ribose and 2-deoxy l-ribose |
WO1999061648A1 (fr) * | 1998-05-27 | 1999-12-02 | Mitsubishi Chemical Corporation | Procede de production de l-ribose |
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US20020028955A1 (en) | 2002-03-07 |
KR20020008997A (ko) | 2002-02-01 |
US6448415B1 (en) | 2002-09-10 |
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