Enantioselective acylation of chroman-4-ols catalysed by lipase from Pseudomonas cepecia (Amano PS)
摘要:
Lipase Amano PS catalysed acylation of (+/-)-chroman-4-ols using vinyl acetate as the acyl donor in n-hexane gave (R)-(+)-chroman-4-ol acetates and (S)-(-)-chroman-4-ols in high enantiomeric excess. The relationship between the position of the substituents in the chroman-4-ol to the ee and the spatial characteristics of the enzyme active site are proposed. (C) 1997 Elsevier Science Ltd.
Syntheses of 4-Aryl Chromanes: A Rearrangement Approach
作者:Pailla Umareddy、Arava Veera Reddy、L. K. Ravindranath
DOI:10.1080/00397911.2015.1015140
日期:2015.5.19
Abstract 4-Aryl chromanes are synthesized from 4-Aryloxy chromanes via a rearrangement methodology. GRAPHICAL ABSTRACT
摘要 4-芳基色满由4-芳氧基色满通过重排方法合成。图形概要
Ramadas; David Krupadanam, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1997, vol. 36, # 12, p. 1119 - 1122
作者:Ramadas、David Krupadanam
DOI:——
日期:——
[EN] COMBINATION THERAPY WITH 5-HT1A AND 5-HT1B RECEPTOR ANTAGONISTS<br/>[FR] POLYTHERAPIE AU MOYEN D'ANTAGONISTES DES RECEPTEURS 5-HT1A ET 5-HT1B
申请人:RECORDATI IRELAND LTD
公开号:WO2005070460A2
公开(公告)日:2005-08-04
A compound having 5-HT1A antagonist activity is useful for the preparation of a medicament for the treatment of neuromuscular dysfunction of the lower urinary tract in combination with the prior, concurrent or post-administration of a compound having 5-HT1B antagonist activity. Alternatively a single compound having both 5HT1A and 5-HT1B antagonist activity is useful for the preparation of a medicament for the treatment of neuromuscular dysfunction of the lower urinary tract.
Enantioselective acylation of chroman-4-ols catalysed by lipase from Pseudomonas cepecia (Amano PS)
作者:S Ramadas、G.L David Krupadanam
DOI:10.1016/s0957-4166(97)00366-2
日期:1997.9
Lipase Amano PS catalysed acylation of (+/-)-chroman-4-ols using vinyl acetate as the acyl donor in n-hexane gave (R)-(+)-chroman-4-ol acetates and (S)-(-)-chroman-4-ols in high enantiomeric excess. The relationship between the position of the substituents in the chroman-4-ol to the ee and the spatial characteristics of the enzyme active site are proposed. (C) 1997 Elsevier Science Ltd.