Synthesis of carumonam (AMA-1080) and a related compound starting from (2R,3R)-epoxysuccinic acid.
作者:MICHIYUKI SENDAI、SHOHEI HASHIGUCHI、MITSUMI TOMIMOTO、SHOJI KISHIMOTO、TAISUKE MATSUO、MICHIHIKO OCHIAI
DOI:10.1248/cpb.33.3798
日期:——
In the course of the chemical modification of sulfazecin, several 4-carbamoyl-2-azetidinone-1-sulfonic acid derivatives were synthesized with the aim of improving the antibacterial activity. Among those compounds, (3S, 4S)-3-[2-(2-aminothiazol-4-yl)-(Z)-2-(1-carboxy-1-methylethoxyimino) acetamido]-4-carbamoyl-2-azetidinone-1-sulfonic acid (2) was found to have potent antibacterial activity, comparable to that of carumonam (1, AMA-1080 ; Ro 17-2301), against gramnegative bacteria. Efficient synthetic pathways to prepare 1 and 2 in large quantities were developed based on (2R, 3R)-epoxysuccinic acid (5), an easily accessible fermentation product, as a starting chiral synthon.
在对磺胺氟噻嗪进行化学改造的过程中,合成了几种4-氨甲酰-2-氮杂环丁酮-1-磺酸衍生物,旨在提高其抗菌活性。在这些化合物中,(3S, 4S)-3-[2-(2-氨噻唑-4-基)-(Z)-2-(1-羧基-1-甲基乙氧亚胺)乙酰氨基]-4-氨甲酰-2-氮杂环丁酮-1-磺酸(2)被发现对抗革兰氏阴性细菌具有强大的抗菌活性,结果与卡鲁莫南(1, AMA-1080; Ro 17-2301)相当。基于(2R, 3R)-环氧琥珀酸(5)这一易于获取的发酵产物,开发了高效的合成路径,以大规模制备1和2。