Ag-Catalyzed Asymmetric Mannich Reactions of Enol Ethers with Aryl, Alkyl, Alkenyl, and Alkynyl Imines
作者:Nathan S. Josephsohn、Marc L. Snapper、Amir H. Hoveyda
DOI:10.1021/ja049388e
日期:2004.3.1
An efficient catalytic and enantioselective method (up to >98% ee) for Mannich reactions between trimethylsilyl enol ethers derived from acetone and acetophenone and aryl, alkenyl, alkynyl, and alkyl imines is disclosed. A large variety of beta-amino ketones can be synthesized in the presence of 1-5 mol % AgOAc and an inexpensive and readily available amino acid-derived phosphine. All Ag-catalyzed
SHAH, V. H.;BAXI, A. J.;CHAUHAN, N. A., J. INST. CHEM., 62,(1990) N, C. 167-168
作者:SHAH, V. H.、BAXI, A. J.、CHAUHAN, N. A.
DOI:——
日期:——
ANTI-TUMOR COMPOUNDS, PHARMACEUTICAL COMPOSITIONS, METHODS FOR PREPARATION THEREOF AND FOR TREATMENT
申请人:THE RESEARCH FOUNDATION OF STATE UNIVERSITY OF NEW YORK
公开号:EP0690856A1
公开(公告)日:1996-01-10
EP0690856A4
申请人:——
公开号:EP0690856A4
公开(公告)日:1996-02-07
[EN] ANTI-TUMOR COMPOUNDS, PHARMACEUTICAL COMPOSITIONS, METHODS FOR PREPARATION THEREOF AND FOR TREATMENT<br/>[FR] COMPOSES ANTITUMORAUX, COMPOSITIONS PHARMACEUTIQUES, MODES DE PREPARATION, THERAPEUTIQUES
申请人:THE RESEARCH FOUNDATION OF THE STATE UNIVERSITY OF NEW YORK
公开号:WO1994022856A1
公开(公告)日:1994-10-13
(EN) The present invention is directed to novel taxanes useful as chemotherapeutic agents or their precursors. Processes for preparing the novel taxanes include coupling reactions, in the presence of a base, of baccatin of formula (III) or (IV) with $g(b)-lactams of formula (V). The invention also provides pharmaceutical compositions including the novel taxanes and methods for treatment of certain cancers with these new compounds.(FR) La présente invention concerne de nouveaux taxanes utiles en tant qu'agents chimiothérapiques ou leurs précurseurs. Les procédés de préparation des nouveaux taxanes comportent la réaction couplée, en présence d'une base, de baccatine de formule (III) ou (IV) avec des $g(b)-lactames de formule (V). L'invention propose également des compositions pharmaceutiques qui comprennent les nouveaux taxanes ainsi que des thérapeutiques anticancéreuses qui utilisent ces nouveaux composés.