[EN] PREPARATION OF SUBSTITUTED 2-HYDROXYGIBBA-1(10A), 2, 4, 4B-TETRAEN-6-ONES<br/>[FR] PRÉPARATION DE 2-HYDROXYGIBBA-1(10A), 2, 4, 4B-TÉTRAEN-6-ONES SUBSTITUÉES
申请人:MERCK & CO INC
公开号:WO2007081895A2
公开(公告)日:2007-07-19
[EN] The instant invention describes processes for synthesizing substituted 2-hydroxygibba-1(10a),2,4,4b-tetraen-6-ones. [FR] L'invention concerne des procédés de synthèse de 2-hydroxygibba-1(10a),2,4,4b-tétraen-6-ones substituées.
WO2007/81895
申请人:——
公开号:——
公开(公告)日:——
Development of a Phase Transfer Catalyzed Asymmetric Synthesis for an Estrogen Receptor Beta Selective Agonist
作者:Jeremy P. Scott、Michael S. Ashwood、Karel M. J. Brands、Sarah E. Brewer、Cameron J. Cowden、Ulf-H. Dolling、Khateeta M. Emerson、Andrew D. Gibb、Adrian Goodyear、Steven F. Oliver、Gavin W. Stewart、Debra J. Wallace
DOI:10.1021/op700178q
日期:2008.7.1
A practical asymmetric synthesis of the estrogen receptor beta selective agonist (7β-9aβ)-1,4-dichloro-2-hydroxygibba-1(10a),2,4,4b-tetraen-6-one (1), proceeding by way of six isolated intermediates and without recourse to chromatography, is described. Highlights of the process route developed are two chemoselective chlorinations, a lithiated hydrazone alkylation and an asymmetric Michael addition