| 摘要 |
Tropyl benzoate deriv. (I) [R1=C1-4 alkyl, C1-4alkoxy, halogen; R2=hydrogen, C1-4alkyl, C1-4alkoxy, halogen; R3=hydrogen, C1-4alkyl, C1-4alkoxy, halogen is prepd. for use as medicine for headache. 34.24g of tropine is treated with anhydrous diethylether and hydrochloride to give hydrochloric salt of tropine. This salt is mixed with 51.7g of 3,5-dichloro benzoyl chloride and this mixt. is stirred 15min at 140≦̸C. After recrysallization, 51.8g of tropyl-3,5- dichlorobenzoate is prepd..
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