Lipase mediated optical resolution of bicyclic secondary carbinols
摘要:
The optical resolution of (+/-)-endo-bicyclo[2.2.1.] heptan-2-ol and (+/-) bicyclo [2.2.2.] octan-2-ol proceeds by porcine lipase catalyzed transesterification under anhydrous conditions.
Chiral norbornane-type alcohols of high optical purity were prepared via enzymaticresolution of their racemic esters using lipases from Candida cylindracea and Pseudomonas sp. This method presents a short and efficient access to a number of chiral building blocks on a molar scale for the synthesis of optically active cyclopentane systems.
[EN] ENZYMATIC RESOLUTION OF ENDO-BICYCLO(2.2.1)HEPTAN-2-OL AND DERIVED PHARMACEUTICAL AGENTS
申请人:PFIZER INC.
公开号:WO1991007501A1
公开(公告)日:1991-05-30
(EN) Process for the pancreatic lipase mediated transesterification method for the optical resolution of $i(endo)-norborneol; derived optically active 5-(3-(exo-bicyclo[2.2.1]hept-2-yloxy)-4-methoxyphenyl)-3,4,5,6-tetrahydropyrimidin-2(1H)-ones; and stepwise process and intermediates therefor.(FR) Procédé pour la transestérification induite par lipase pancréatique pour la résolution optique de $i(endo)-norbornéol; 5-(3-(exo-bicyclo[2.2.1]hept-2-yloxy)-4-methoxyphényle)-3,4,5,6-tétrahydropyrimidine-2(1H)-ones dérivées optiquement actives; et procédé par étapes et intermédiaires utilisés.