Synthesis and biological evaluation of indolyl bisphosphonates as anti-bone resorptive and anti-leishmanial agents
摘要:
A series of indole conjugated bisphosphonate derivatives have been synthesized and evaluated for their in vitro anti-bone resorptive activity using bone marrow osteoclast culture. Two bisphosphonates 23 and 24 significantly inhibited osteoclastogenesis, 23 showed inhibition at 10 and 100 pM which was lower than the concentration of standard drug alendronate, and 24 inhibited osteoclastogenesis at 100 nM which was comparable to alendronate. Two other compounds 13 and 14 also showed inhibition comparable to alendronate, but were cytotoxic in the osteoblast cells. The two active bisphosphonates 23 and 24 induced significant osteoclast apoptosis at concentrations 100 nM for compound 24 and at 10 pM for compound 23 compared to alendronate. In vivo effect of active bisphosphonates 23 and 24 resulted in osteoclastogenesis of bone marrow cells (BMCs) to almost 40-50% (23 showing 8.4% decrease and 24 showing 9.0%) compared to 16.5% of the ovariectomized group. Further, screening of anti-leishmanial activity, four compounds 24-25 and 27-28 showed more than 80% inhibition against both the promastigote and amastigote stages of the Leishmania parasite. (C) 2008 Elsevier Ltd. All rights reserved.
[EN] NOVEL N-SUBSTITUTED DIHYDROBENZOTHIEPINO, DIHYDROBENZOXEPINO AND TETRAHYDRO BENZOCYCLOHEPTA INDOLES AS SELECTIVE ESTROGEN RECEPTOR MODULATORS [FR] NOUVEAUX DIHYDROBENZOTHIEPINO, DIHYDROBENZOXEPINO ET TETRAHYDRO BENZOCYCLOHEPTA INDOLES N-SUBSTITUES UTILISES EN TANT QUE MODULATEURS DU RECEPTEUR DES OESTROGENES
[EN] NOVEL N-SUBSTITUTED DIHYDROBENZOTHIEPINO, DIHYDROBENZOXEPINO AND TETRAHYDRO BENZOCYCLOHEPTA INDOLES AS SELECTIVE ESTROGEN RECEPTOR MODULATORS<br/>[FR] NOUVEAUX DIHYDROBENZOTHIEPINO, DIHYDROBENZOXEPINO ET TETRAHYDRO BENZOCYCLOHEPTA INDOLES N-SUBSTITUES UTILISES EN TANT QUE MODULATEURS DU RECEPTEUR DES OESTROGENES
申请人:COUNCIL SCIENT IND RES
公开号:WO2005094833A1
公开(公告)日:2005-10-13
The invention provides a novel class of N-substituted dihydrobenzothiepino, dihydrobenzoxepino and tetrahydro benzocyclohepta indoles of Formula (I) and their pharmaceutically acceptable salts, and methods for of synthesizing these compounds. The invention further comprises pharmaceutical compositions and methods of use for these compounds for the treatment of estrogen related diseases or disorders.
Novel-N substituted dihydrobenzothiepino, dihydrobenzoxepino and tetrahydro benzocyclohepta indoles as selective estrogen receptor modulators
申请人:Hajela Kanchan
公开号:US20050282863A1
公开(公告)日:2005-12-22
The invention provides a novel class of N-substituted dihydrobenzothiepino, dihydrobenzoxepino and tetrahydro benzocyclohepta indoles and their pharmaceutically acceptable salts, and methods for of synthesizing these compounds. The invention further comprises pharmaceutical compositions and methods of use for these compounds for the treatment of estrogen related diseases or disorders.
A series of indole conjugated bisphosphonate derivatives have been synthesized and evaluated for their in vitro anti-bone resorptive activity using bone marrow osteoclast culture. Two bisphosphonates 23 and 24 significantly inhibited osteoclastogenesis, 23 showed inhibition at 10 and 100 pM which was lower than the concentration of standard drug alendronate, and 24 inhibited osteoclastogenesis at 100 nM which was comparable to alendronate. Two other compounds 13 and 14 also showed inhibition comparable to alendronate, but were cytotoxic in the osteoblast cells. The two active bisphosphonates 23 and 24 induced significant osteoclast apoptosis at concentrations 100 nM for compound 24 and at 10 pM for compound 23 compared to alendronate. In vivo effect of active bisphosphonates 23 and 24 resulted in osteoclastogenesis of bone marrow cells (BMCs) to almost 40-50% (23 showing 8.4% decrease and 24 showing 9.0%) compared to 16.5% of the ovariectomized group. Further, screening of anti-leishmanial activity, four compounds 24-25 and 27-28 showed more than 80% inhibition against both the promastigote and amastigote stages of the Leishmania parasite. (C) 2008 Elsevier Ltd. All rights reserved.