반응식
[CH:1]1([C:7]2[CH:20]=[CH:19][C:10]([O:11][CH2:12][C@H:13]3[O:17][C:16]([NH2:18])=[N:15][CH2:14]3)=[CH:9][CH:8]=2)[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.C1O[C@H]1CCl.C1(C2C=CC(O)=CC=2)CCCCC1.[CH2:39]([C:41](=[CH2:47])[C:42](OCC)=[O:43])[CH3:40]>C(O)CCC>[CH:1]1([C:7]2[CH:20]=[CH:19][C:10]([O:11][CH2:12][C@H:13]3[O:17][C:16]4=[N:18][C:42](=[O:43])[C@H:41]([CH2:39][CH3:40])[CH2:47][N:15]4[CH2:14]3)=[CH:9][CH:8]=2)[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6]1.[CH:1]1([C:7]2[CH:20]=[CH:19][C:10]([O:11][CH2:12][C@H:13]3[O:17][C:16]4=[N:18][C:42](=[O:43])[C@@H:41]([CH2:39][CH3:40])[CH2:47][N:15]4[CH2:14]3)=[CH:9][CH:8]=2)[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6]1참가 물질
7
반응물 4
생성물 2
시약·촉매·용매 1
반응 조건
- 온도
- 90 °C
실험 절차
A solution of (S)-5-(4-cyclohexyl-phenoxymethyl)-4,5-dihydro-oxazol-2-ylamine (0.85 g, 3.09 mmol), prepared in accordance with the procedures in Steps 1 and 2 of Example 1 and starting from R-epichlorohydrin and 4-cyclohexylphenol, and ethyl ethylacrylate (1.0 g, 7.57 mmol) in n-butanol (2 ml) was heated at 90° C. for 18 hrs. The reaction mixture was concentrated and loaded onto a silica gel column, and eluted with 2-6% isopropanol/methylene chloride to afford (2S,6R)-2-(4-cyclohexyl-phenoxymethyl)-6-ethyl-2,3,5,6-tetrahydro-oxazolo[3,2-a]pyrimidin-7-one (0.24 g) and (2S,6S)-2-(4-cyclohexyl-phenoxymethyl)-6-ethyl-2,3,5,6-tetrahydro-oxazolo[3,2-a]pyrimidin-7-one (0.34 g).
후처리
- concentrationThe reaction mixture was concentrated
- washeluted with 2-6% isopropanol/methylene chloride
출처 및 근거
- ORD 기록
- ord-7a3f0f1716684aa09e223acbd5c2a242
- 출처 데이터셋
- uspto-grants-2014_02
- 특허 번호
- US08642603B2
연결된 노트
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