4-[2-[[(6R,7R)-7-amino-2-carboxy-8-oxo-5-thia -1-azabicyclo[4.2.0]oct- 2-en-3-yl]thio]-4-thiazolyl] -1-methyl-pyridinium(189345-52-6)的中试大生产工艺;技术转让、技术求购 4-[2-[[(6R,7R)-7-amino-2-carboxy-8-oxo-5-thia -1-azabicyclo[4.2.0]oct- 2-en-3-yl]thio]-4-thiazolyl] -1-methyl-pyridinium(189345-52-6)