上游原料
5-Mercapto-1-methyl-1H-tetrazole; 1-Methyl-1H-1,2,3,4-tetraazol-5-ylhydrosulfide1-[[(4-hydroxy-6-methyl-3-pyridinyl)carbonyl]oxy]-2,5-pyrrolidinedione(6R,7R)-3-[(acetoxy)methyl]-7-[[(2R)-2-amino-2-(4-hydroxyphenyl)ethanoyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid(6R,7R)-3-[(acetoxy)methyl]-7-[[(2R)-2-[[(4-hydroxy-6-methyl-3-pyridinyl)carbonyl]amino]-2-(4-hydroxyphenyl)ethanoyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
