Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
Potassium Iodide → benzyl 3(S)-tert-butoxycarbonylamino-4-oxo-2,3,4,5-tetrahydro-1,5-benzoxazepine-5-acetate
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | Potassium Iodide | HCID 4875 | — |
| 반응물 | Acetic acid, 2-chloro-, phenylmethyl ester | HCID 8786 | — |
| 반응물 | Potassium Carbonate | HCID 11430 | — |
| 반응물 | (S)-tert-Butyl (4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)carbamate | HCID 18599719 | — |
| 용매 | Water | HCID 962 | — |
| 용매 | Dimethylformamide | HCID 6228 | — |
| 생성물 | benzyl 3(S)-tert-butoxycarbonylamino-4-oxo-2,3,4,5-tetrahydro-1,5-benzoxazepine-5-acetate | HCID 18599734 | 62.1% |
반응 단계
In 150 ml of N,N-dimethylformamide is dissolved 12.3 g of 3(S)-tert-butoxycarbonylamino-2,3,4,5-tetrahydro-1,5-benzoxazepine-4-one, and 8.7 g of benzyl chloroacetate, 8.7 g of anhydrous potassium carbonate and 1 g of potassium iodide are added to the solution. After stirring for 15 hours, the mixture is poured in ice-cooled water. The deposited material is collected by filtration, washed with water and recrystallized from ethyl acetate-hexane to give 11.7 g of benzyl 3(S)-tert-butoxycarbonylamino-4-oxo-2,3,4,5-tetrahydro-1,5-benzoxazepine-5-acetate as colorless prisms, melting at 122°-124° C.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US04548932 |
| 출처 데이터셋 | uspto-grants-1985_10 |
| ORD ID | ord-c385b3b2796346a39fc74091c538b86d |
| 출처 메모 | uspto-grants-1985_10 |