申请人:——
公开号:US06388134B1
公开(公告)日:2002-05-14
The present invention refers to new derivatives of the 6-(4-phenylbutoxy)hexylamine of the general formula (I):
wherein:
R1 is CHO or CHOR3OR4, where R3 and R4 independently are C1-C6 alkyl, aralkyl, or they form 5 or 6 membered cyclic acetals; and
R2 is H, benzyl or an alkyloxycarbonyl, aryloxycarbonyl, aralkyloxycarbonyl or acyl group;
and to a process for its obtention. The invention also refers to a new process for obtaining Salmeterol or its pharmaceutically acceptable salts, characterized in that reaction of an organometallic compound of the general formula (13) is carried out in an inert solvent at low temperature with a synthetic intermediate of the general formula (I), wherein R1 is CHO, and R2 is an alkyloxycarbonyl, aryloxycarbonyl, aralkyloxycarbonyl or acyl group.
本发明涉及一般式(I)的6-(4-苯基丁氧基)己基胺的新衍生物,其中:R1是CHO或CHOR3OR4,其中R3和R4独立地是C1-C6烷基、芳基烷基,或它们形成5或6成员环缩醛;R2是H、苄基或烷氧羰基、芳氧羰基、芳基烷氧羰基或酰基;以及其获得的方法。该发明还涉及一种用于制备沙美特罗或其药用可接受盐的新方法,其特征在于在惰性溶剂中在低温下将一般式(13)的有机金属化合物与一般式(I)的合成中间体反应,其中R1为CHO,R2为烷氧羰基、芳氧羰基、芳基烷氧羰基或酰基。