Studies on β-Lactam Antibiotics for Medicinal Purpose. V. Structure of Degradation Products of 6-[D (-)-α-(4-Ethyl-2, 3-dioxo-1-piperazinecarboxamido) phenylacetamido] penicillanic Acid (T-1220) in Aqueous Solution
Open Access
- 1 January 1977
- journal article
- research article
- Published by Pharmaceutical Society of Japan in YAKUGAKU ZASSHI
- Vol. 97 (10) , 1064-1070
- https://doi.org/10.1248/yakushi1947.97.10_1064
Abstract
The structure of degradation compounds of T-1220 in aqueous solution was investigated. In alkaline solution, .alpha.-}3-[2-(N-ethyl-N-oxaloamino)ethyl]-ureido}benzylpenicillin (T-1220 A), .alpha.-(-4-ethyl-2,3-dioxo-1-piperazinecarboxamido)benzylpenicilloic acid (T-1220B) and .alpha.-}3-[2-(N-ethyl-N-oxaloamino)ethyl]ureido}benzylpenicilloic acid (T-1220 C) were produced. In acid solution, T-1220 B and .alpha.-(4-ethyl-2,3-dioxo-1-piperazinecarboxamido)benzylpenicilloic acid (T-1220 D) were produced.Keywords
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