HI! JCOCHs€ I?! JCOCH3 enzymatic studies. While this compound had not been prepared previously it might, appear that it would be readily available by acetylation of the known ethyl 2-benzyl carbazate3 (111). However, the route of the latter compound-Le., ethyl carbazate- monbhydrazone of ethyl carbazate and diacetyl-+ ethyl 1-diacetylidene-2-benzyl carbazate- ethyl 2-benzyl carbazate3-was sufficiently unattractive to cause us to explore other routes ...