| 摘要 |
Anisole derivs. of formula (I), useful as an intermediate for sythesizing a cotarnine, are prepd. In (I), when A, B and C are hydrogen respectively, D is -OH, halogen, -CO2R1[R1 = lower alkyl or -SO2R2[R2 = lower alkyl ; when A and C are hydrogen, and B is -OH, D is -CO2R3[R3 =lower alkyl ; when A is hydrogen, and B and C form oxo group(=0), D is -CO2R4[R4 =lower alky ; when B and C are hydrogen respectively, and D is halogen, A is -CHO. The cotarnine is used as a starting material for antiallergic tritoqualine.
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