(2020/10/21)
(2020/11/23)
p-nitrobenzyl 6β-phthalimidylpenicillanate
Penicillin G potassium
1-bromomethyl-4-nitro-benzene
phenylacetyl chloride
2-((1R)-3-benzyl-7-oxo-(1rH,5cH)-4-thia-2,6-diaza-bicyclo[3.2.0]hept-2-en-6-yl)-3-methyl-but-2-enoic acid 4-nitro-benzyl ester
1ξ-oxo-6β-(2-phenyl-acetylamino)-1λ4-penicillanic acid 4-nitro-benzyl ester
6α-methoxy-6β-(2-phenyl-acetylamino)-penicillanic acid
6β-[(9-methoxy-fluorene-9-carbonyl)-phenylacetyl-amino]-penicillanic acid 4-nitro-benzyl ester
6β-[(methoxy-diphenyl-acetyl)-phenylacetyl-amino]-penicillanic acid 4-nitro-benzyl ester