扑喘息敏为日本1980年上市的新的镇咳祛痰药——Procaterol。有关结构研究及分析方法未见报导。我院从1980年至今合成出多批原料药,定名为扑喘息敏。本文通过NMR.UV.IR.MS 分析,证明扑喘息敏结构是正确的。在 D_2O 中的 NMR 数据与文献值相符。特别是化学位移δ=5.71ppm 是双峰,~3J=4.2H_2证明扑喘息敏是以赤式构型为 Pegasus allergy for the Japanese market in 1980, the new antitussive expectorant - Procolol. There is no report about structural research and analysis methods. Our hospital from 1980 to date, a number of batches of APIs, named as Pao Xue Min. In this paper, NMR.UV.IR.MS analysis showed that propamocarbamide structure is correct. The NMR data in D 2 O coincide with the literature values. In particular, the chemical shift δ = 5.71ppm is a bimodal, ~ 3J = 4.2H_2 propensity to breathe is based on the red configuration