2-Chloromandelic acid, is used as a pharmaceutical intermediate as well as in the medicine industry. It is used as a intermediate of clopidrogrel.
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Y Peng.; Q He.; S Rohani, H Jenkins. Resolution of 2-chloromandelic acid with (R)-(+)-N-benzyl-1-phenylethylamine: chiral discrimination mechanism. Chirality. 201224 (5), 349-355.