Process for manufacturing 5-(2-{[6-(2,2-difluoro-2-phenylethoxy)hexyl]amino}-1-hydroxyethyl)-8-hydroxyquinolin-2(1H)-one
申请人:Marchueta Hereu Iolanda
公开号:US08524908B2
公开(公告)日:2013-09-03
A process for preparing a compound of formula (I), or a pharmaceutically acceptable salt thereof,
which process comprises:
a) reacting, in a xylene solvent, a compound of formula (V) having P1 and P2 protecting groups, with a compound of formula (IV), to give a compound of formula (III); and
b) effecting a P1 deprotection step and a P2 deprotection step to give a compound of formula (I); and optionally
c) preparing a pharmaceutically acceptable salt of a compound of formula (I);
wherein the compounds of formulas III, IV, and V are described in the specification.
一种制备化合物(I)或其药学上可接受的盐的方法,包括以下步骤:
a) 在二甲苯溶剂中反应式为(V)的化合物,该化合物具有P1和P2保护基,与式为(IV)的化合物反应,得到式为(III)的化合物;
b) 进行P1去保护基和P2去保护基步骤,得到式为(I)的化合物;可选地
c) 制备化合物(I)的药学上可接受的盐;
其中,式为III、IV和V的化合物在说明书中有描述。