Structure–activity relationship studies of S1P agonists with a dihydronaphthalene scaffold
作者:Haruto Kurata、Kensuke Kusumi、Kazuhiro Otsuki、Ryo Suzuki、Masakuni Kurono、Natsuko Tokuda、Yuka Takada、Hiroki Shioya、Hirotaka Mizuno、Takaki Komiya、Takeji Ono、Hiroshi Hagiya、Masashi Minami、Shinji Nakade、Hiromu Habashita
DOI:10.1016/j.bmcl.2011.11.048
日期:2012.1
Structure-activity relationship (SAR) of sphingosine-1-phosphate receptor agonists with a dihydronaphthalene scaffold was investigated. Compound 1 was modified to improve S1P(1) agonistic activity and in vivo peripheral lymphocyte lowering (PLL) activity without impairing selectivity over S1P(3) agonistic activity. A detailed SAR study of the terminal lipophilic part revealed that the introduction of substituents on the propylene linker and the terminal benzene ring influences in vitro and PLL activities. Compound 6n bearing a (S)-methyl group at the 2-position on the propylene linker and chlorine at the para-position on the terminal benzene ring showed potent hS1P(1) agonistic activity with excellent selectivity over hS1P(3) and in vivo PLL activity in mice. (C) 2011 Elsevier Ltd. All rights reserved.