Synthesis of homochiral ketones derived from L-tryptophan: Potent substance P receptor antagonists
作者:Kevin J. Merchant、Richard T. Lewis、Angus M. MacLeod
DOI:10.1016/s0040-4039(00)73152-2
日期:1994.6
The synthesis in 36% overall yield of (S)-2-amino-5-(3,5-bis(trifluoromethyl)phenyl)-1-(3-indolyl-3-pentanone, the precursor to a novel class of substancePantagonists, is described.
Stereoselective total synthesis of lysocellin, the representative polyether antibiotic of the lysocellin family. Part 1. Synthesis of C1–C9 and C16–C23 subunits
The C1–C9 (4) and C16–C23 subunits (9) of lysocellin (1), a representative polyetherantibiotic, were synthesized stereoselectively from D-glucose and D-mannitol. Stereocontrolled hydroboration, Michael reaction, Grignard reaction, etc. were successfully applied.
AMPHOTERICIN B DERIVATIVES WITH IMPROVED THERAPEUTIC INDEX
申请人:THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
公开号:US20160215012A1
公开(公告)日:2016-07-28
Provided are certain derivatives of amphotericin B (AmB) characterized by reduced toxicity and retained anti-fungal activity. Certain of the derivatives are C16 urea derivatives of AmB. Certain of the derivatives are C3, C5, C8, C9, C11, C13, or C15 deoxy derivatives of AmB. Certain of the derivatives include C3′ or C4′ modifications of the mycosamine appendage of AmB. Also provided are methods of making AmB derivatives of the invention, pharmaceutical compositions comprising AmB derivatives of the invention, and methods of use of AmB derivatives of the invention.
First totalsynthesis of mycinolide IV (2) was accomplished. Novel rearrangement of epoxyalcohol derivatives was applied to the synthesis of the C(11)–C(17) portion, assembly of which with the C(1)–C(10) portion (prepared via pinacol-type rearrangement) enabled a simple and stereoselective synthesis of 2
完成了mycininolide IV (2) 的首次全合成。环氧醇衍生物的新重排被应用于 C(11)–C(17) 部分的合成,其与 C(1)–C(10) 部分(通过频哪醇型重排制备)的组装能够实现简单且2的立体选择性合成
Enantioselective Total Synthesis of Brevetoxin A: Convergent Coupling Strategy and Completion
作者:Michael T. Crimmins、J. Lucas Zuccarello、Patrick J. McDougall、J. Michael Ellis
DOI:10.1002/chem.200900777
日期:2009.9.14
A highly convergent, enantioselective totalsynthesis of brevetoxin A is reported. The development of a [X+2+X] Horner–Wadsworth–Emmons/cyclodehydration/reductive etherification convergent couplingstrategy allowed a unified approach to the synthesis of two advanced tetracyclic fragments from four cyclic ether subunits. The Horner–Wittig coupling of the two tetracyclic fragments provided substrates