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Folic and homofolic acid analogues with the glutamic acid moiety replaced by glycine and DL-alanine were described [72] as part of a larger series consisting mainly of compounds with dicarboxylic acid side-chains (vide infra). A -Acetyl-A - trifluoroacetylpteroic acid andfV -acetyl-V°-trifluoroacetyl-homopteroic acid was each activated with isobutyl chloroformate, the mixed anhydride was condensed with ethyl glycinate or ethyl DL-alaninate, and all... [Pg.160]

See other pages where Homopteroic acid is mentioned: [Pg.52] [Pg.54] [Pg.181] [Pg.52] [Pg.54] [Pg.181]