(2R)-2-(甲氧基甲基)吡咯烷盐酸盐置于sodium Hydroxide体系中,用 水 作为反应溶剂,化学反应生成 (R)-(-)-2-(甲氧基甲基)吡咯烷 参考文献:Application Of Chiral Transfer Reagents To Improve Stereoselectivity And Yields In The Synthesis Of The Antituberculosis Drug Bedaquiline 标题:Application Of Chiral Transfer Reagents To Improve Stereoselectivity And Yields In The Synthesis Of The Antituberculosis Drug Bedaquiline 摘要: DOI:10.1021/acs.Oprd.3C00287
专利号:US-7825244-B2 优先权日:2005-06-10 标题:Intermediates useful in the synthesis of alkylquinoline and alkylquinazoline kinase modulators, and related methods of synthesis 发明人:BAINDUR NAND; GAUL MICHAEL DAVID; KREUTTER KEVIN DOUGLAS; XU GUOZHANG 权利人:JANSSEN PHARMACEUTICA NV 摘要:The invention is directed to alkylquinoline and alkylquinazoline compounds of Formula C: n nwherein R 1 , R 2 , R 99 , and X are as defined herein, the use of such compounds in the synthesis of protein tyrosine kinase inhibitors, particularly inhibitors of FLT3 and/or c-kit and/or TrkB.
专利号:WO-2009030733-A1 优先权日:2007-09-04 标 题 :Method for the synthesis of 4-alkoxy-, 4-hydroxy- and 4-aryloxy-substituted tetrahydro-furo[3,4-b]furan-2(3h)-one compounds 发明人:QUAEDFLIEG PETER JAN LEONARD MARIO; ALSTERS PAULUS LAMBERTUS; STRAATMAN HENRICUS MARTINUS MARIO; HANBAUER MARTIN HELMUT FRIEDRICK 权利人:DSM IP ASSETS BV; QUAEDFLIEG PETER JAN LEONARD MARIO; ALSTERS PAULUS LAMBERTUS; STRAATMAN HENRICUS MARTINUS MARIA GERARDUS; HANBAUER MARTIN HELMUT FRIEDRI 摘要:The present invention relates to a method for the synthesis of enantiomerically and diastereomerically enriched 4-alkoxy-, 4-hydroxy- or 4-aryloxy- substituted tetrahydro-furo[3,4-b]furan-2(3H)-ones by aldol coupling of a suitable hydroxyl-protected hydroxy-acetaldehyde and 4-oxobutanoic acid or an ester thereof, and subsequent removal of the protecting group from the aldol compound and (optionally simultaneous) cyclizations and acetal formation under acidic conditions in the presence of an alcohol, followed by optional isolation of the desired compounds. The invention also relates to compounds according to formulae [Xl] and [XII].
专利号:WO-2009026961-A1 优先权日:2007-08-30 标 题:Processes for the preparation of pancratistatin and pancratistatin analogues 发明人:ALONSO ALONSO RICARDO; OZORES VITURRO LIDIA; CAGIDE FAGIN FERNANDO; ORTIZ LARA JUAN CARLOS 权利人:UNIV SANTIAGO COMPOSTELA; ALONSO ALONSO RICARDO; OZORES VITURRO LIDIA; CAGIDE FAGIN FERNANDO; ORTIZ LARA JUAN CARLOS 摘要:Processes for the preparation of pancratistatin and pancratistatin analogues. The key step is the reaction of a 1,3-dioxan-5-one and a nitroolefine in the presence of an amine. The process may take place in an enantioselective way when a chiral amine is used. Reduction processes then give new and advanced intermediates that are useful for the preparation of pancratistatin or selected pancratistatin analogues. The reported process also provides a method for the efficient synthesis of nitroenals, starting materials of the synthesis. Analogues of pancratistatin are also provided.
专利号:US-6960601-B2 优先权日:2001-09-24 标题 :Preparation and use of imidazole derivatives for treatment of obesity 发明人:SMITH ROGER A; O'CONNOR STEPHEN J; WIRTZ STEPHAN-NICHOLAS; WONG WAI C; CHOI SOONGYU; KLUENDER HAROLD C E; SU NING; WANG GAN; ACHEBE FURAHI; YING SHIHONG 权利人:BAYER PHARMACEUTICALS CORP 摘要:This invention relates to substituted imidazole derivatives which have been found to suppress appetite and induce weight loss. The invention also provides methods for synthesis of the compounds, pharmaceutical compositions comprising the compounds, and methods of using such compositions for inducing weight loss and treating obesity and obesity-related disorders.
专利号:US-2007021436-A1 优先权日:2005-06-10 标 题 :Intermediates useful in the synthesis of alkylquinoline and alkylquinazoline kinase modulators, and related methods of synthesis
专利号:AU-2006258056-A1 优先权日:2005-06-10 标 题:Intermediates useful in the synthesis of alkylquinoline and alkylquinazoline kinase modulators and related methods of synthesis