July, 1949
2469
S Y N T H E T I C A P P R O A C H TO C H L O R A M P H E N I C O L [ C O S T R I B U T I O N FROM T H E R E S E A R C H
LABORATORIES OF
.
Chloramphenicol’ (Chloromycetin)
PARKE, DAVIS
& CO.1
VI. A Synthetic Approach
BY LORENM. LONGAND H. D. TROUTMAN D- (-)-threo-1 -p-Nitrophenyl-2-dichloroacetamido- L ,: