(3S,4R/3R,4S)-3,4-dihydro-2,2-dimethyl-3-hydroxy-4-(2-oxo-1,2-dihydropyridin-1-yl)-6-(1H-tetrazol-5-yl)-2H-benzo[b]pyran 、
三丁基氧化锡 、
碘甲烷 以
正己烷 、
二氯甲烷 、
乙酸乙酯 为溶剂,
生成
(3S,4R/3R,4S)-3,4-Dihydro-2,2-dimethyl-3-hydroxy-6-(1-methyl-1H-tetrazol-5-yl)-4-(2-oxo-1,2-dihydropyridin-1-yl)-2H-benzo[b]pyran 、 (3S,4R/3R,4S)-3,4-dihydro-2,2-dimethyl-3-hydroxy-6-(2-methyl-1H-tetrazol-5-yl)-4-(2-oxo-1,2-dihydropyridin-1-yl)-2H-benzo[b]pyran