哌啶酮 、
(3S,4S/3R,4R)-3,4-dihydro-2,2-dimethyl-3,4-epoxy-6-(1-[3-phenylprop-1-yl]-1H-tetrazol-5-yl)-2H-benzo[b]pyran 以
dimethyl sulphoxide (DMSO) 、
水 、
二甲基亚砜 、 mineral oil 为溶剂,
生成 (3S,4R/3R,4S)-3,4-Dihydro-2,2-dimethyl-3-hydroxy-4-(2-oxopiperidin-1-yl)-6-(1-[3-phenylprop-1-yl]-1H-tetrazol-5-yl)-2H-benzo[b]pyran