185802-22-6 | Amoxicillin Open Ring Methyl Ester | [2S-[2α[S*(S*)],4α]]-α-[[Amino(4-hydroxyphenyl)acetyl]amino]-4-carboxy-5,5-dimethyl-2-thiazolidineacetic Acid α-Methyl Ester; (2R)\u200b-1-\u200bMethyl Ester (2R)\u200b-\u200b2-\u200b(4-\u200bHydroxyphenyl)\u200bglycyl-\u200b2-\u200b[(2S,\u200b4S)\u200b-\u200b4 ...