Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
Penicillin G → 4-methoxybenzyl (2RS)-2-hydroxy-2-[(3R,4R)-4-mercapto-3-phenylacetamidoazetidin-2-on-1-yl]acetate
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | Penicillin G | HCID 5904 | — |
| 반응물 | p-Toluenesulfonic acid | HCID 6101 | — |
| 반응물 | Penicillin V | HCID 6869 | — |
| 반응물 | 4-Methoxybenzyl (RS)-2-hydroxy-2-[(lR,5R)-3-benzyl-4-thia-2,6-diazabicyclo[3.2.0)hept-2-en-7-on-6-yl]acetate | HCID 53656123 | — |
| 용매 | Acetone | HCID 180 | — |
| 용매 | Water | HCID 962 | — |
| 용매 | Dichloromethane | HCID 6344 | — |
| 생성물 | 4-methoxybenzyl (2RS)-2-hydroxy-2-[(3R,4R)-4-mercapto-3-phenylacetamidoazetidin-2-on-1-yl]acetate | HCID 54454956 | — |
반응 단계
Toluene-4-sulphonic acid (6.0g, 31.5mmol) in water (15ml) was added to a solution of 4-methoxybenzyl (2RS)-2-hydroxy-2-[(1R,5R)-3-benzyl-4-thia-2,6-diazabicyclo [3.2.0]hept-2-en-7-on-6-yl]acetate (7.42g, 18.0mmol) prepared from Penicillin G as described for the benzhydryl ester derived from Penicillin V, S. Yamamoto, N. Haga, T. Aoki, S. Hayashi, H. Tanida, and W. Nagata, Heterocycles, 1977, 8, 283) in dichloromethane (30ml) and acetone (30ml) . After stirring for 2.5 h at room temperature, the reaction mixture was diluted with dichloromethane, washed with water (x2), dried and concentrated in vacuo to yield crude 4-methoxybenzyl (2RS)-2-hydroxy-2-[(3R,4R)-4-mercapto-3-phenylacetamidoazetidin-2-on-1-yl]acetate as a yellow foam.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US06020329 |
| 출처 데이터셋 | uspto-grants-2000_02 |
| ORD ID | ord-42441a00ee534f25b7bdac242c274c7b |
| 출처 메모 | uspto-grants-2000_02 |