The process for producing an optically active 3-substituted glutaric acid monoamide is characterized in comprising the step of precipitating the optically active 3-substituted glutaric acid monoamide by mixing an acid and a mixed liquid containing an optically active 3-substituted glutaric acid monoamide represented by the following formula (2):
wherein * indicates an asymmetric carbon atom; R1 is a C1-8 alkyl group, a C2-8 alkenyl group, a C2-8 alkynyl group, a C4-20 aryl group or a C5-20 aralkyl group; and the alkyl group, the alkenyl group, the alkynyl group, the aryl group and the aralkyl group may have a substituent,
a basic compound, water and an organic solvent.
生产光学活性的3-取代
戊二酸单酰胺的过程的特点在于包括通过混合含有下列式(2)所表示的光学活性的3-取代
戊二酸单酰胺的混合液和酸来沉淀光学活性的3-取代
戊二酸单酰胺的步骤:其中*表示不对称碳原子;R1是C1-8烷基、C2-8烯基、C2-8炔基、C4-20芳基或C5-20芳基烷基;烷基、烯基、炔基、芳基和芳基烷基可能有取代基,碱性化合物,
水和有机溶剂。