bis-N,N'-(2-hydroxyacetophenylidine)-1,3-propanediamine 、
硼酸 、
苯硼酸 以
乙腈 为溶剂,
以78%的产率得到(6R,10S)-16,22-dimethyl-8-phenyl-19,20-dihydro-18H-6l4,10l4-6,10-epoxybenzo[5,6][1,3,2]oxazaborinino[2,3-d]benzo[5,6][1,3,2]oxazaborinino[3,2-i][1,3,5,9,2,4,10]dioxadiazatriborecine-17,21-diium