Potassium Carbonate → 8-(1-cyclopropyl-6-fluoro-1H-benzimidazol-2-yl)-1,6-naphthyridine

HRID 1048947노트

반응식

HRID 1048947 반응식
[CH:1]1([NH:4][C:5]2[C:6]([NH2:12])=[CH:7][CH:8]=[C:9]([F:11])[CH:10]=2)[CH2:3][CH2:2]1.[N:13]1[C:22]2[C:17](=[CH:18][N:19]=[CH:20][C:21]=2[CH:23]=O)[CH:16]=[CH:15][CH:14]=1.OOS([O-])=O.[K+].C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C.O.C(OCC)(=O)C>[CH:1]1([N:4]2[C:5]3[CH:10]=[C:9]([F:11])[CH:8]=[CH:7][C:6]=3[N:12]=[C:23]2[C:21]2[CH:20]=[N:19][CH:18]=[C:17]3[C:22]=2[N:13]=[CH:14][CH:15]=[CH:16]3)[CH2:3][CH2:2]1

참가 물질

8

반응물 4

HCID 11430Potassium CarbonateHCID 23707502Potassium hydroxy sulfiteHCID 534219291,6-Naphthyridine-8-carbaldehydeHCID 545925541-N-cyclopropyl-5-fluorobenzene-1,2-diamine

생성물 1

HCID 566453598-(1-cyclopropyl-6-fluoro-1H-benzimidazol-2-yl)-1,6-naphthyridine

시약·촉매·용매 3

HCID 962Water용매2회HCID 6228Dimethylformamide용매HCID 8857Ethyl Acetate용매2회

실험 절차

To a solution of N2-cyclopropyl-4-fluorobenzene-1,2-diamine (0.080 g, 0.48 mmol) in DMF (1.17 mL) and water (0.04 mL) were added the title compound from Example 8 Step A (0.084 g, 0.53 mmol) and OXONE® (0.192 g, 0.313 mmol). The resulting mixture was stirred at room temperature for 1 hour, then diluted with ethyl acetate and water. Solid potassium carbonate was added until the aqueous layer was basic (pH ˜9). Ethyl acetate was added, and the organic layer was separated, washed with water and brine, dried over magnesium sulfate, filtered and concentrated. Purification by flash chromatography on silica gel (50% ethyl acetate in hexanes, then 100% ethyl acetate) provided the title compound: LCMS m/z 304.99 [M+H]+; 1H NMR (500 MHz, CDCl3) δ 9.09 (s, 1 H), 9.13 (m, 1 H), 9.07 (s, 1 H), 8.43 (d, J=8.3 Hz, 1 H), 7.78 (dd, J=8.7, 4.8 Hz, 1 H), 7.63 (dd, J=8.2, 4.2 Hz, 1 H), 7.34 (dd, J=8.7, 2.2 Hz, 1 H), 7.07 (m, 1 H), 3.55-3.53 (m, 1 H), 0.62-0.61 (m, 4 H).

후처리

  1. customthe organic layer was separated
  2. washwashed with water and brine
  3. dry with materialdried over magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customPurification by flash chromatography on silica gel (50% ethyl acetate in hexanes

출처 및 근거

ORD 기록
ord-eca0fbf5738847e48ee478121c018bbf
출처 데이터셋
uspto-grants-2016_07
특허 번호
US09382226B2

반응 노트

불러오는 중…