| 摘要 |
Compounds of formula (I), wherein each of alc1, alc2 and alc3 which are the same or different, is an alkyl radical containing up to 8 carbon atoms, n is an integer from 0 to 8, and R1 and R2 are an O-alkyl radical containing up to 8 carbon atoms, or form a cyclic acetal together with the carbon atom to which they are attached, are disclosed. The compounds may be used in the preparation of substances suitable for preparing antibiotic substances. |
