Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
2-Ethoxy-2-hydroxyacetic acid p-nitrobenzyl ester → 2-[(3S,4R)-4-(2-p nitrobenzyloxycarbonylaminoethylthiothiocarbonylthio)-3-methoxy-2-oxoazetidin-1-yl]-2-hydroxyacetic acid p-nitrobenzyl ester
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | 2-Ethoxy-2-hydroxyacetic acid p-nitrobenzyl ester | HCID 11043316 | — |
| 반응물 | (3S,4R)-4-(2-p-nitrobenzyloxycarbonylaminoethylthiothiocarbonylthio)-3-methoxy-2-oxoazetidine | HCID 56621546 | — |
| 용매 | Toluene | HCID 1140 | — |
| 용매 | Dimethylformamide | HCID 6228 | — |
| 생성물 | 2-[(3S,4R)-4-(2-p nitrobenzyloxycarbonylaminoethylthiothiocarbonylthio)-3-methoxy-2-oxoazetidin-1-yl]-2-hydroxyacetic acid p-nitrobenzyl ester | HCID 56615449 | — |
반응 단계
Analogously to Example 23, 646 mg (1.5 mmole) of (3S,4R)-4-(2-p-nitrobenzyloxycarbonylaminoethylthiothiocarbonylthio)-3-methoxy-2-oxoazetidine in 22 ml of absolute toluene and 5.5 ml of absolute dimethylformamide are reacted with 848 mg of 2-ethoxy-2-hydroxyacetic acid p-nitrobenzyl ester in the presence of freshly dried molecular sieves. After working up and chromatography over silica gel the title compound is obtained.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US04952690 |
| 출처 데이터셋 | uspto-grants-1990_08 |
| ORD ID | ord-3320636333d44c068e472ff21661ab82 |
| 출처 메모 | uspto-grants-1990_08 |