0-Carbamyl-L, D-and DL-serine have been prepared through interaction of L, D-and DL-N- carbobenzoxyserine benzyl ester with phosgene followed by treatment with ammonium hydroxide and hydrogenolysis. The L-derivative inhibits growth of Streptococcus lactis 8039, Lactobaczllus arnbinosus 17-5 and Escherichia coli 9723, whereas the D-isomer is not inhibitory even at high levels. The inhibition of growth of S Zactis by 0-carbamylserine is ...
