(2R,3R,4R)-4-Azidomethyl-3-mercapto-oxetane-2-carboxylic acid methyl ester 在
palladium on activated charcoal i-PrNEt 、
氢气 作用下,
以
1,4-二氧六环 、
乙腈 为溶剂,
生成 (4R,5S,6S)-3-[(2R,3R,4R)-2-(aminomethyl)-4-methoxycarbonyloxetan-3-yl]sulfanyl-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid