Optically active cerulenin 1, a potent inhibitor of fatty acid synthetase, was prepared via the condensation of the epoxy aldehyde 8 and the alkenyl lithium 16. In order to evaluate the effects of (E, E)-1, 4-double bounds of the cerulenin side chain on the interaction with the enzyme, a series of optically active cerulenin analogs 32a-i with modified side chains and tetrahydrocerulenin 3 were synthesized by similar procedures.
A convergent asymmetric synthesis of γ-butenolides
作者:Marc Renard、Léon A. Ghosez
DOI:10.1016/s0040-4020(01)00078-3
日期:2001.3
The addition of aldehydes to the new enantiomerically pure lithiated sulfoxide-orthoester 13 yielded gamma -butenolides of high enantiomeric purities after elimination of phenylsulfinic acid. The cyclocondensation with ketones was less stereoselective. This new asymmetric synthesis of gamma -butenolides has been applied to a convergent preparation of the antifungal antibiotic (+)-cerulenin. (C) 2001 Elsevier Science Ltd. All rights reserved.
Total syntheses of (.+-.)-cerulenin, (.+-.)-tetrahydrocerulenin and related compounds
作者:Ann A. Jakubowski、Frank S. Guziec、Marsaru Sugiura、Coretta Chan Tam、Max Tishler
DOI:10.1021/jo00346a016
日期:1982.3
FURUKAWA, JUN;FUNABASHI, HIROSHI;MORISAKI, NAOKO;IWASAKI, SHIGEO;OKUDA, S+, CHEM. AND PHARM. BULL., 36,(1988) N 3, 1229-1232
A Concise Synthesis of (+)-Cerulenin from a Chiral Oxiranyllithium
作者:Neelakandha S. Mani、Craig A. Townsend
DOI:10.1021/jo9618177
日期:1997.2.1
(+)-Cerulenin, a potent fungal inactivator of fatty acid synthases, has been prepared in optically pure form by a sequence involving reaction of a chiral oxiranyllithium with (4E,7E)-nonadienal. Synthesis of the former takes advantage of a particularly favorable Sharpless epoxidation and metalation to a configurationally stable organolithium, while the latter is available in quantity by a direct and improved route.