| 摘要 |
<p>PURPOSE:Physiologically active substance esterastine. Characteristics thereof are as follows: white powdery neutral substance; m.p. 90-95 deg.C; easily soluble in pyridine, methanol, etc., slightly soluble in water, petroleum ether, etc.; specific rotation [alpha]<2>D<0>+11 deg. (C/, chloroform); molecular weight 506; elementary analysis, C 67.04%, H 9.21%, N 5.56%, O 17.90%; UV spectrum (in methanol) shows an absorption peak at lambdamax230nm; IR spectrum shows specific absorption bands at 3470, 3350cm<-1>, etc</p> |
