甲醇

(6R-cis)-7-amino-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-7-(methylthio)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid diphenylmethyl ester

7beta-氨基-7alpha-甲氧基-3-(1-甲基-1H-四唑-5-硫甲基)-8-氧代-5-硫-1-杂氮双环[4.2.0]辛-2-烯-2-甲酸二苯基甲酯