Pirbuterol is prepared by heating 5-hydroxy-2-(1-hydroxy-2-t-butylaminoethyl)pyridine with aqueous formaldehyde in the presence of a weak base, e.g. triethylamine. The pirbuterol is conveniently isolated as the hydrochloride. Pirbuterol is a well known bronchodilator.
在弱碱(如
三乙胺)存在下,通过加热 5-羟基-2-(1-羟基-2-叔丁基
氨基乙基)
吡啶和
甲醛水溶液制备
吡布特罗。方便地分离出
盐酸吡咯烷酮。匹布特罗是一种众所周知的支气管扩张剂。