Discovery of L-791,943: A potent, selective, non emetic and orally active phosphodiesterase-4 inhibitor
作者:Daniel Guay、Pierre Hamel、Marc Blouin、Christine Brideau、Chi Chung Chan、Nathalie Chauret、Yves Ducharme、Zheng Huang、Mario Girard、Tom R. Jones、France Laliberté、Paul Masson、Malia McAuliffe、Hanna Piechuta、José Silva、Robert N. Young、Yves Girard
DOI:10.1016/s0960-894x(02)00190-7
日期:2002.6
Structure-activity relationship studies directed toward improving the potency and metabolic stability of CDP-840 (3) resulted in the discovery of L-791,943 (1 In) as a potent (HWB TNF-alpha = 0.67 muM) and orally active phosphodiesterase type 4 (PDE4) inhibitor. This compound, which bears a stable bis-difluoromethoxy catechol and a pendant hexafluorocarbinol, exhibited a long half-life in rat and in squirrel monkey. It is well tolerated in ferret with an emetic threshold greater than 30 mg/kg (po) and was found to be active in the ovalbumin-induced bronchoconstriction model in guinea pig and in the ascaris-induced bronchoconstriction models in sheep and squirrel monkey. (C) 2002 Elsevier Science Ltd. All rights reserved.