During the preparation of compounds related to Chloromycetin,~-(levo)-fhreo-~-n~ trophenyl- 2-dichloroacetamido-1, 3-propanediol, a number were synthesized with variations in the alkyl side chain. In the present series changes were made in carbon atoms (1) and/or (3) which involved either the replacement of hydroxyl with hydrogen or alkyl or the complete omission of these carbon atoms from the structure. Nitration of the acetyl derivatives of ...