| abstract |
THE PROCEDURE INCLUDES A SERIES OF STAGES ESSENTIALLY CONSISTING OF PROTECTION OF THE FUNCTIONAL GROUPS OF THE SIDE CHAIN OF AMPICILLIN, STERIFICATION OF THE ACID GROUP, SULFOXIDE OXIDATION, THE RING OF TIAZOLE, A TILEZ RING HYDROXYL GROUP BY CHLORINE AND DEPROTECTION OF FUNCTIONAL GROUPS, IN WHICH THE ORDER OF SOME STAGES MAY VARY, WITHOUT AFFECTING THE FINAL RESULT. |