HRID557440

反应详情

EQUATION

反应方程式

HRID 557440 的结构方程式

PROCEDURE

实验过程

430 mg (1.13 mmol) of racemic propyl 5-cyano-2,6-dimethyl-4-(2-methyl-4-oxo-4H-chromen-8-yl)-1,4-dihydropyridine-3-carboxylate (example 4) are separated into the enantiomers by preparative HPLC on a chiral phase [column: Chiralpak AD-H, 250 mm×4.6 mm; eluent: isohexane/ethanol 3:1 (v/v)+0.2% diethylamine; flow rate: 1 ml/min; UV detection: 220 nm]: