(+/-)-5-[7-hydroxy-8-(1-hydroxy-2-methyl-propyl)-2-isopropyl-4-oxo-4H-quinazolin-3-yl]-3-methyl-pyridine-2-carbonitrile 生成 (R)-5-[7-hydroxy-8-(1-hydroxy-2-methyl-propyl)-2-isopropyl-4-oxo-4H-quinazolin-3-yl]-3-methyl-pyridine-2-carbonitrile 、 (S)-5-[7-hydroxy-8-(1-hydroxy-2-methyl-propyl)-2-isopropyl-4-oxo-4H-quinazolin-3-yl]-3-methyl-pyridine-2-carbonitrile