[EN] ESTROGEN RECEPTOR MODULATORS<br/>[FR] MODULATEURS DU RÉCEPTEUR DES ŒSTROGÈNES
申请人:ASTRAZENECA AB
公开号:WO2018138303A1
公开(公告)日:2018-08-02
The specification relates to compounds of Formula (I): (I) 5and to pharmaceutically acceptable salts thereof, to processes and intermediates used for their preparation, to pharmaceutical compositions containing them and to their use in the treatment of cell proliferative disorders.
We describe a facile approach for effectively constructing the pentacyclic framework of subincanadine B. The seven-step assembly of tetracyclic ketone 14 featured Michael addition, Pictet-Spengler cyclization, and Dieckmann condensation. From this key ketone intermediate, two analogues of subincanadine 13, i.e., 20-deethylenylated subincanadine B (27) and 19,20-dihydrosubincanadine B (31), were synthesized in four steps, respectively.
Models of folate cofactors - 22. Lewis acid catalyzed cyclization of carbon-fragment transfer products of folate cofactor models. Synthesis of enantiomerically pure tetracyclic (ABCE) ring system of aspidosperma alkaloids.
作者:R.H Huizenga、U.K Pandit
DOI:10.1016/s0040-4020(01)86452-8
日期:1991.1
Michael adducts of tryptamine, N(1)-methyltryptamine and tryptophane with acrylic esters react with substituted imidazolidines (N(5), N(10)-methylenetetrahydrofolate models) to give enaminones which cyclize under influence of Lewis acid, to give mixtures of tetrahydro-1H-pyrido[3,4-b]indoles and pyrrolo[2,3-d]carbazoles. The influence of the nature of Lewis acid on product formation is discussed. The synthesis of an enantiomerically pure pyrrolo[2,3-d]carbazole system is reported.
ESTROGEN RECEPTOR MODULATORS
申请人:Astrazeneca AB
公开号:EP3494116B1
公开(公告)日:2019-10-23
Stereospecific access to bridged [n.2.1] skeletons through gold-catalyzed tandem reaction of indolyl homopropargyl amides
作者:Tong-De Tan、Xin-Qi Zhu、Mei Jia、Yongjia Lin、Jun Cheng、Yuanzhi Xia、Long-Wu Ye
DOI:10.1016/j.cclet.2019.10.019
日期:2020.5
cycloisomerization-initiated tandem reaction of Boc-protected indole tethered homopropargyl amides has been achieved. This method delivers a wide range of valuable bridged aza-[n.2.1] skeletons (n = 3–7) at roomtemperature with high diastereoselectivity and enantioselectivity by a chirality-transfer strategy. Moreover, the gold-catalyzed tandem reaction of homopropargyl alcohol is also achieved to produce