Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
3-Methyl-4-nitrobenzoic acid → N-(3-Methyl-4-nitrobenzoyl)threonine methyl ester
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | 3-Methyl-4-nitrobenzoic acid | HCID 18370 | — |
| 반응물 | Diisopropylethylamine | HCID 81531 | — |
| 반응물 | 1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride | HCID 2723939 | — |
| 반응물 | Methyl L-threoninate hydrochloride | HCID 2734893 | — |
| 촉매 | 4-(Dimethylamino)pyridine | HCID 14284 | — |
| 용매 | Dichloromethane | HCID 6344 | — |
| 생성물 | N-(3-Methyl-4-nitrobenzoyl)threonine methyl ester | HCID 67548938 | 900.1% |
반응 단계
The same operation as in Example (102a) was performed using threonine methyl ester hydrochloride (6.73 g, 39.6 mmol), 3-methyl-4-nitrobenzoic acid (7.18 g, 3.96 mmol), WSC hydrochloride (8.05 g, 42 mmol), DMAP (0.18 g, 1.5 mmol), N,N-diisopropylethylamine (5.42 g, 42 mmol) and dichloromethane (100 mL). The resulting residue was purified by silica gel column chromatography (elution solvent: ethyl acetate/hexane=1/3, 2/3, 3/2, 3/1) to obtain 10.56 g of the title compound as a light yellow amorphous solid (90%).
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US08536197B2 |
| 출처 데이터셋 | uspto-grants-2013_09 |
| ORD ID | ord-5f81184728d14aea84083654c73cfc1b |
| 출처 메모 | uspto-grants-2013_09 |