| 摘要 |
Compounds of formula (I) or pharmaceutically acceptable salts thereof; <CHEM> wherein R1 is a group -X-Y where X is a carbonyl group and Y is hydrogen, C1-8 alkyl, C2-8 alkenyl, or optionally substituted aryl or heteroaryl; R2 is hydroxy or C1-8 alkoxy; R3 is hydrogen or an amine protection group; and each R4 is hydrogen; their preparation, compositions containing them and their use as antifungal agents are described. |
