abstract |
Covers 11-substituted erythromycin B derivatives having a formula selected from the group consisting of: WHERE R is selected from the group consisting of lower alkyl and -CHR3SR4 where R3 and R4 are loweralkyl, and R1 and R2 are hydrogen or loweralkyl and; WHERE R1, R2 and R3 are as before defined. Said erythromycin derivatives are useful as antibiotics or as intermediates useful in preparing other useful antibiotic compounds. |