Relating to processes for preparing suvorexant or its pharmaceutically acceptable salts through the formation of a cocrystal of (R)-benzyl 5-methyl-1,4-diazepane-1-carboxylate hydrochloridewith (R)-(+)-1,1,2-triphenyl-1,2-ethanediol ((R)-TED). This cocrystal provides the resolution of an intermediate of suvorexant, in particular, of(rac)-benzyl5-methyl-1,4-diazepane-1-carboxylateor a hydrochloride salt thereof. It also relates to a new cocrystal useful in such preparation processes.
与通过(R)-苄基5-甲基-1,4-二氮杂环-1-
羧酸盐与(R)-(+)-1,1,2-三苯基-1,2-
乙二醇((R)-TED)的共晶形成来制备苏维雷沙或其药用可接受盐的过程相关。这种共晶提供了苏维雷沙的中间体的分离,特别是(rac)-苄基5-甲基-1,4-二氮杂环-1-
羧酸盐或其盐酸盐。它还涉及一种在这种制备过程中有用的新共晶。