Nonsteroidal Progesterone Receptor Ligands. 2. High-Affinity Ligands with Selectivity for Bone Cell Progesterone Receptors
作者:Donald W. Combs、Kimberly Reese、Lyndon A. M. Cornelius、Joseph W. Gunnet、Ellen V. Cryan、Kay S. Granger、Jerold J. Jordan、Keith T. Demarest
DOI:10.1021/jm00025a004
日期:1995.12
A novel series of nonsteroidal heterocycles was discovered which display cell-type selective, high-affinity (nanomolar) binding to the progesteronereceptors from TE85 osteosarcoma cells but > 1 microM binding affinity to the progesteronereceptors from T47D and ZR75 human breast carcinoma cells. Structure-activity relationships were developed for a set of these compounds, and a representative analog
[4 + 2] Cycloaddition of in Situ Generated 1,2-Diaza-1,3-dienes with Simple Olefins: Facile Approaches to Tetrahydropyridazines
作者:Xingren Zhong、Jian Lv、Sanzhong Luo
DOI:10.1021/acs.orglett.5b00445
日期:2015.3.20
A catalyst-free [4 + 2] annulation process between in situ generated 1,2-diaza-1,3-butadienes and simple olefins has been developed. Under mild conditions, the reactions afforded 1,4,5,6-tetrahydropyridazines, which feature a wide range of bioactive compounds, with high yields (up to 99% yield).