Compounds of the formulae
wherein R1 is CH3 or substituted CH2; R2, R'2 and R3 are each H, C1-5 alkyl or phenyl; X is halogen or substituted sulfonyloxy; R5 is acyl; and R50 is H or acyl. The compounds can have light-absorbing, anti-bacterial and anti-tumour utility.
式中,R1 是
CH3 或取代的
CH2;R2、R'2 和 R3 分别是 H、C1-5 烷基或苯基;X 是卤素或取代的磺酰氧基;R5 是酰基;R50 是 H 或酰基。 这些化合物具有吸光、抗菌和抗肿瘤作用。