Biological activity and preclinical efficacy of azetidinyl pyridazines as potent systemically-distributed stearoyl-CoA desaturase inhibitors
作者:Elise Isabel、David A. Powell、W. Cameron Black、Chi-Chung Chan、Sheldon Crane、Robert Gordon、Jocelyne Guay、Sebastien Guiral、Zheng Huang、Joël Robichaud、Kathryn Skorey、Paul Tawa、Lijing Xu、Lei Zhang、Renata Oballa
DOI:10.1016/j.bmcl.2010.10.107
日期:2011.1
Potent and orally bioavailable SCD inhibitors built on an azetidinyl pyridazine scaffold were identified. In a one-month gDIO mouse model of obesity, we demonstrated that there was no therapeutic index even at low doses; efficacy in preventing weight gain tracked closely with skin and eye adverse events. This was attributed to the local SCD inhibition in these tissues as a consequence of the broad tissue distribution observed in mice for this class of compounds. The search for new structural scaffolds which may display a different tissue distribution was initiated. In preparation for an HTS campaign, a radiolabeled azetidinyl pyridazine displaying low non-specific binding in the scintillation proximity assay was prepared. (c) 2010 Elsevier Ltd. All rights reserved.