| 摘要 |
PURPOSE:Antibiotic substance C-15003 of the formula I [R is -CO-CH(CH -CO-CH(CH2)2, -CO-CH2-CH2-CH3, -CO-CH2-CH(CH3)2]. The substances having R group given above are called as antibiotic substance C-15003p-3, C-15003p-3', and C-15003p-4, respectively. |
