An efficient method for the preparation of carbapenem derivatives with C-2 carbon side chains from PS-5 and OA-6129 compounds
Abstract
Treatment of S-oxides of PS-5 and OA-6129 esters with nitromethane gives 2-(nitromethyl)carbapenems which are converted into nitrile oxides leading to isoxazolinyl, isoxazolinyl, or isoxadiazolinyl derivatives.