Synthesis of 7-β-(N,N-dialkylamino)ethoxy derivatives of natural isoflavones and 4-aryl-3-[2-hydroxy-4-β-(N,N-dialkylamino) ethoxy]phenylpyrazoles based on them
Synthesis of 7-β-(N,N-dialkylamino)ethoxy derivatives of natural isoflavones and 4-aryl-3-[2-hydroxy-4-β-(N,N-dialkylamino) ethoxy]phenylpyrazoles based on them
A series of novel flavone derivatives were designed, synthesized, and evaluated for their H3R inhibitory activity. The results showed that four compounds exhibited significant anti-H3R activity. Moleculardocking experiments indicated that a salt bridge, hydrogen-bonding, and hydrophobic interactions all contributed to interactions between inhibitors and H3R.
Synthetic analogs of daidzein, having more potent osteoblast stimulating effect
作者:Dinesh K. Yadav、Abnish K. Gautam、Jyoti Kureel、Kamini Srivastava、Mahendra Sahai、Divya Singh、Naibedya Chattopadhyay、Rakesh Maurya
DOI:10.1016/j.bmcl.2010.12.008
日期:2011.1
A series of didzein derivatives were synthesized and assessed for stimulation of osteoblast differentiation using primary cultures of rat calvarial osteoblasts. Data suggested that three synthetic analogs, 1c, 3a and 3c were several folds more potent than daidzein in stimulating differentiation and mineralization of osteoblasts. Further, these three compounds did not show any estrogen agonistic activity, however had mild estrogen antagonistic effect. Out of the three compounds, 3c was found to maximally increase the mineralization of bone marrow osteoprogenitor cells. Compound 3c also robustly increased the mRNA levels of osteogenic genes including bone morphogenetic protein-2 and osteocalcin in osteoblasts. Unlike daidzein, 3c did not inhibit osteoclastogenesis. Collectively, we demonstrate osteogenic activity of daidzein analogs at significantly lower concentrations than daidzein. (C) 2010 Elsevier Ltd. All rights reserved.