Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
HRID 79979생성일: 2026년 10월 24일
Diisopropylethylamine → 6-(2-Methoxycarbonylamino-3-methyl-butyryl)-5-oxa-6-aza-spiro[3.4]octane-7-carboxylic acid ethyl ester
https://huagongshe.com/ko/reaction/79979
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|
| 반응물 | Diisopropylethylamine | HCID 81531 | — |
| 반응물 | Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1) | HCID 9886157 | — |
| 반응물 | 2-((Methoxycarbonyl)amino)-3-methylbutanoic acid | HCID 13821101 | — |
| 반응물 | Ethyl 5-oxa-6-azaspiro[3.4]octane-7-carboxylate | HCID 59611538 | — |
| 용매 | Dimethylformamide | HCID 6228 | — |
| 용매 | Ethyl Acetate | HCID 8857 | — |
| 생성물 | 6-(2-Methoxycarbonylamino-3-methyl-butyryl)-5-oxa-6-aza-spiro[3.4]octane-7-carboxylic acid ethyl ester | HCID 66620649 | 72.2% |
반응 단계
To a solution of 2-methoxycarbonylamino-3-methyl-butyric acid (1.11 g, 6.33 mmol) and HATU (2.41 g, 6.34 mmol) in dimethylformamide (13 mL) was added a solution of 5-oxa-6-aza-spiro[3.4]octane-7-carboxylic acid ethyl ester (980 mg, 5.3 mmol) in dimethylformamide (13 mL). To the resulting reaction mixture was added diisopropylethylamine (1.85 mL, 10.6 mmol) and the reaction was heated to 60° C. for 16 hours. The reaction was diluted with ethyl acetate, washed with water and brine, dried (MgSO4) and concentrated. The resulting residue was purified by flash chromatography to give 6-(2-methoxycarbonylamino-3-methyl-butyryl)-5-oxa-6-aza-spiro[3.4]octane-7-carboxylic acid ethyl ester (1.31 g, 72%). LCMS-ESI+: calculated for C16H26N2O6: 342.18; observed [M+1]+: 342.90.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| 특허 번호 | US08841278B2 |
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| 출처 데이터셋 | uspto-grants-2014_09 |
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| ORD ID | ord-cf4deb46546a49aab00dce4cbee52581 |
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| 출처 메모 | uspto-grants-2014_09 |
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