monooxygenase CYP3A4 catalyzes the intramolecular rearrangement of the dual orexin receptor antagonist daridorexant. Hydroxylation in 5-position of the pyrrolidine ring initially yields a cyclic hemiaminal which subsequently hydrolyzes to a ring-open amino aldehyde. Cyclization of the latter onto one of the nitrogen atoms of the benzimidazole moiety yields the final 4-hydroxy piperidinol metabolite.
人单加氧酶CYP3A4 催化双重食欲素受体拮抗剂 daridorexant 的分子内重排。
吡咯烷环 5 位的羟基化最初产生环状
半缩醛胺,随后
水解为开环
氨基醛。后者在
苯并咪唑部分的一个氮原子上环化产生最终的
4-羟基哌啶醇代谢物。