A new entry to N-unsubstituted β-lactams through a solid-phase approach
摘要:
A remarkable new entry to N-unsubstituted beta-lactams using rink resin as the solid-support has been developed. (C) 2002 Elsevier Science Ltd. All rights reserved.
Novel cis compound having the formula: ##STR1## wherein R.sup.1 is alkyl, haloalkyl, cycloalkyl, aryl or a carbohydrate derivative; X is O, N, S, C(O)O or a direct bond; and R.sup.2 is aryl, substituted aryl or heteroaryl are useful in the synthesis of taxol and taxol derivatives.
The present invention concerns antitumor compounds. More particularly, the invention provides novel taxane derivatives, pharmaceutical compositions thereof, and their use as antitumor agents.
Novel beta-lactams methods for the preparation of taxanes, and sidechain-bearing taxanes
申请人:Thottathil K. John
公开号:US20050107605A1
公开(公告)日:2005-05-19
Novel β-lactams finding utility as intermediates in the preparation of sidechain-bearing taxanes such as taxol and taxol derivatives. The present invention also relates to novel methods of coupling β-lactams to form such sidechain-bearing taxanes, and to novel sidechain-bearing taxanes.
Novel beta-lactams, methods for the preparation of taxanes, and sidechain-bearing taxanes
申请人:——
公开号:US20020137927A1
公开(公告)日:2002-09-26
Novel &bgr;-lactams finding utility as intermediates in the preparation of sidechain-bearing taxanes such as taxol and taxol derivatives. The present invention also relates to novel methods of coupling &bgr;-lactams to form such sidechain-bearing taxanes, and to novel sidechain-bearing taxanes.
Semi-Synthesis Of Taxane Intermediates And Aziridine Analogues And Their Conversion To Paclitaxel And Docetaxel
申请人:Naidu Ragina
公开号:US20080033189A1
公开(公告)日:2008-02-07
A process is provided for the semi-synthesis of taxane intermediates and aziridine analogues of cephalomannine and baccatin III intermediates, and the conversion of such intermediates and analogues to paclitaxel and docetaxel.