Discovery of a pyrazolo[1,5-a]pyrimidine derivative (MT-3014) as a highly selective PDE10A inhibitor via core structure transformation from the stilbene moiety
作者:Yuuki Koizumi、Yoshihito Tanaka、Takehiko Matsumura、Yoichi Kadoh、Haruko Miyoshi、Mitsuya Hongu、Kei Takedomi、Jun Kotera、Takashi Sasaki、Hiroyuki Taniguchi、Yumi Watanabe、Misae Takakuwa、Koki Kojima、Nobuyuki Baba、Itsuko Nakamura、Eiji Kawanishi
DOI:10.1016/j.bmc.2019.06.021
日期:2019.8
We have developed a new class of PDE10A inhibitor, a pyrazolo[1,5-a] pyrimidine derivative MT-3014 (1). A previous compound introduced was deprioritized due to concerns for E/Z-isomerization and glutathione-adduct formation at the core stilbene structure. We discovered pyrazolo [1,5-a] pyrimidine as a new lead scaffold by structure-based drug design utilizing a co-crystal structure with PDE10A. The lead compound was optimized for in vitro activity, solubility, and selectivity against human ether-a-go-go related gene cardiac channel binding. We observed that MT-3014 shows excellent efficacy in rat conditioned avoidance response test and suitable pharmacokinetic properties in rats, especially high brain penetration.