AZETINE COMPOUNDS AS OREXIN RECEPTOR ANTAGONISTS

摘要

FIELD: medicine, pharmaceutics. ^ SUBSTANCE: present invention refers to a compound of formula ^ ^ wherein R1, R2 and X are those as specified in cl.1 of the patent claim, or its pharmaceutically acceptable salt, as well as using such compound or its pharmaceutically acceptable salt for preparing a drug preparation for prevention and treatment of all types of sleeping, eating or drinking disorders. ^ EFFECT: preparing the new azetidine compounds showing activity of orexin receptor antagonists. ^ 12 cl, 112 ex, 1 tbl