Methylamine → 3-(benzyloxy)-N-cyclobutyl-1,6-dimethyl-4-oxo-1,4-dihydropyridine-2-carboxamide

HRID 420476노트

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HRID 420476 반응식
[CH2:1]([O:8][C:9]1[C:14](=[O:15])[CH:13]=[C:12]([CH3:16])O[C:10]=1[C:17]([NH:19][CH:20]1[CH2:23][CH2:22][CH2:21]1)=[O:18])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH3:24][NH2:25]>CO>[CH2:1]([O:8][C:9]1[C:14](=[O:15])[CH:13]=[C:12]([CH3:16])[N:25]([CH3:24])[C:10]=1[C:17]([NH:19][CH:20]1[CH2:23][CH2:22][CH2:21]1)=[O:18])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

참가 물질

4

반응물 2

HCID 6329MethylamineHCID 866117983-(benzyloxy)-N-cyclobutyl-6-methyl-4-oxo-4H-pyran-2-carboxamide

생성물 1

HCID 666589483-(benzyloxy)-N-cyclobutyl-1,6-dimethyl-4-oxo-1,4-dihydropyridine-2-carboxamide수율 62.4%

시약·촉매·용매 1

HCID 887Methanol용매

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온도
72.5 °C

실험 절차

To a solution of the compound from example 4 (2.616 g, 8.35 mmol, 1.0 equiv) in methanol (10 ml) was quickly added methylamine (2M in methanol, 20 ml, 40 mmol, 4.79 equiv). The sealed tube was stirred overnight at 70-75° C. The resulting brown solution was evaporated to dryness and purified by chromatography (EtOAc, then 1:4 MeOH/EtOAc) provided the titled compound (1.70 g, 62.24%) as a white solid. M.p. 221.3-222.4° C.; 1H-NMR (DMSO-d6, 400 MHz) δ 1.65-1.69 (m, 2H, cyclobutyl H), 1.90-1.95 (m, 2H, cyclobutyl H), 2.14-2.21 (m, 2H, cyclobutyl H), 2.31 (s, 3H, CH3), 3.42 (s, 3H, NCH3), 4.34-4.30 (m, 1H, CH), 5.05 (s, 2H, OCH2Ph), 6.22 (s, 1H, CH), 7.39-7.30 (m, 5H, ArH), 9.08-9.06 (d, 1H, J=7.08 Hz, NH); MS (m/z) 327 (M++1), 230, 166, 91.

후처리

  1. customThe resulting brown solution was evaporated to dryness
  2. custompurified by chromatography (EtOAc

출처 및 근거

ORD 기록
ord-a6d5069a688244e0a49bae04eb6d4990
출처 데이터셋
uspto-grants-2012_01
특허 번호
US08097624B2

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