Piperazinone, piperazine, 1,4-diazepin-2-one and 1,4-diazepine intermediate compounds

摘要

The compounds of the following formulas where W is hydrogen, benzyloxycarbonyl, or t-butoxycarbonyl useful as intermediates for preparing piperazine, piperazinone, 1,4-diazepine and 1,4-diazepin-2-one polypeptide compound.