The present invention provides a compound of the formula (I):
wherein R1a, R1b, R1c and R1d are each independently hydrogen, lower alkyl, lower alkenyl, lower alkynyl, lower alkylsulfonyl or cycloalkyl and the like, R4 to R15 are hydrogen, halogen, hydroxy, lower alkyl, lower alkoxy, carboxy, lower alkoxycarbonyl, amino, nitro, lower alkylsulfonyl, lower alkylsulfonyloxy and the like,
which has superior immunosuppressive and /or anti-allergic activity and is useful for a pharmaceutical composition.
本发明提供了化合物(I)的公式,其中R1a、R1b、R1c和R1d各自独立地表示氢、低碳基、低烯基、低炔基、低烷基磺酰基或环烷基等,R4至R15表示氢、卤素、羟基、低碳基、低烷氧基、羧基、低烷氧羰基、
氨基、硝基、低烷基磺酰基、低烷基磺酰氧基等,该化合物具有卓越的免疫抑制和/或抗过敏活性,可用于制备药物组合物。