1.The preparation of penicillin G sulfoxide p-nitrobenzyl ester from penicillin G was studied.
对青霉素G钾制备青霉素G亚砜对-酯工艺进行了研究。
2.Nitro 1,2,4 triazole 5 one(NTO)can be obtained by nitrating 1,2,4 triazole 3 one (TO) under different conditions,and nitrobenzyl derivatives of TO are prepared as well.