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Triphenylphosphine → 6-(5-Methyl-3-pyrimidin-4-yl-isoxazol-4-ylmethoxy)-nicotinic acid methyl ester

HRID 1521271
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HRID 1521271 반응식
[CH3:1][C:2]1[O:6][N:5]=[C:4]([C:7]2[CH:12]=[CH:11][N:10]=[CH:9][N:8]=2)[C:3]=1[CH2:13][OH:14].O[C:16]1[CH:25]=[CH:24][C:19]([C:20]([O:22][CH3:23])=[O:21])=[CH:18][N:17]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OCC)=O)=NC(OCC)=O>C1COCC1>[CH3:23][O:22][C:20](=[O:21])[C:19]1[CH:24]=[CH:25][C:16]([O:14][CH2:13][C:3]2[C:4]([C:7]3[CH:12]=[CH:11][N:10]=[CH:9][N:8]=3)=[N:5][O:6][C:2]=2[CH3:1])=[N:17][CH:18]=1
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참가 물질

6

반응물 4

HCID 11776TriphenylphosphineHCID 220568ethyl N-ethoxycarbonyliminocarbamateHCID 67158426(5-Methyl-3-pyrimidin-4-yl-isoxazol-4-yl)-methanolHCID 178498304HCID 178498304, 화합물

생성물 1

HCID 684425476-(5-Methyl-3-pyrimidin-4-yl-isoxazol-4-ylmethoxy)-nicotinic acid methyl ester수율 18%

시약·촉매·용매 1

HCID 8028
Tetrahydrofuran
용매

실험 절차

To a solution of (5-methyl-3-pyrimidin-4-yl-isoxazol-4-yl)-methanol (313 mg, 1.63 mmol) in THF (20 mL) was added methyl 6-hydroxynicotinate (276 mg, 1.8 mmol) and triphenylphosphine (644 mg, 2.5 mmol) at room temperature under an argon atmosphere. Then diethyl azodicarboxylate (˜40% in toluene, 1.1 mL, 2.5 mmol) was added and the reaction mixture was stirred for 30 min at room temperature. Concentration and purification by chromatography (SiO2, heptane:ethyl acetate=100:0 to 1:1) afforded the title compound (95 mg, 18%) as a white solid. MS: m/e=327.3 [M+H]+.

후처리

  1. concentrationConcentration and purification by chromatography (SiO2, heptane:ethyl acetate=100:0 to 1:1)

출처 및 근거

ORD 기록
ord-954e053842f241158d5398f218db0b34
출처 데이터셋
uspto-grants-2015_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09073908B2

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