Asymmetric weitz - scheffer epoxidation promoted by bovine serum albumin
作者:Stefano Colona、Nicoletta Gaggero、Amedea Manfredil、Massimo Spadoni、Luigi Casella、Giacomo Carrea、Piero Pasta
DOI:10.1016/s0040-4020(01)86023-3
日期:1988.1
The epoxidation of 2-substituted naphthoquinones with t-BuOOH in an aqueous buffer solution containing a small amount (up to 5 % molar equiv) of bovine serum albumin (BSA) gives the corresponding epoxides with enantiomeric excess (e.e.) up to 100 %. The enantioselectivity is very sensitive to the addition of water miscible or immiscible cosolvents and to the length of the alkyl chain in position 2
Catalytic asymmetric induction in oxidation reactions. Synthesis of optically active epoxynaphthoquinones
作者:Henk Pluim、Hans Wynberg
DOI:10.1021/jo01300a047
日期:1980.6
COLONNA S.; MANFREDI A.; ANNUNZIATA R.; SPADONI M., TETRAHEDRON, 43,(1987) N 9, 2157-2164
作者:COLONNA S.、 MANFREDI A.、 ANNUNZIATA R.、 SPADONI M.
DOI:——
日期:——
METHODS OF SCREENING AGENTS FOR CYTOTOXIC AND ANTIMICROBIAL ACTIVITY
申请人:Aguilera J. Renato
公开号:US20080020421A1
公开(公告)日:2008-01-24
The present invention provides for methods of screening agents for cytotoxic and/or anti-microbial activity. In particular embodiments, the loss of a fluorescent signal from the treated cells, due to cell death or inhibition of growth, is measured for several different cell types in parallel.
Biomimetic asymmetric synthesis. Enantioselective Weitz-Scheffer epoxidation of vitamin K3 and analogs in the presence of cyclodextrins