1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine) → (R)-1-(4-(8-(4-methoxyphenyl)-[1,2,4]triazolo[1,5-a]pyridin-2-ylamino)-1H-pyrazol-1-yl)propan-2-ol

HRID 1913102

반응식

HRID 1913102 반응식
I[C:2]1[N:18]=[C:5]2[C:6]([C:10]3[CH:15]=[CH:14][C:13]([O:16][CH3:17])=[CH:12][CH:11]=3)=[CH:7][CH:8]=[CH:9][N:4]2[N:3]=1.[NH2:19][C:20]1[CH:21]=[N:22][N:23]([CH2:25][C@H:26]([OH:28])[CH3:27])[CH:24]=1.CC(C)([O-])C.[Na+].C1(P(C2C=CC=CC=2)C2C3OC4C(=CC=CC=4P(C4C=CC=CC=4)C4C=CC=CC=4)C(C)(C)C=3C=CC=2)C=CC=CC=1>O1CCOCC1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[CH3:17][O:16][C:13]1[CH:14]=[CH:15][C:10]([C:6]2[C:5]3[N:4]([N:3]=[C:2]([NH:19][C:20]4[CH:21]=[N:22][N:23]([CH2:25][C@H:26]([OH:28])[CH3:27])[CH:24]=4)[N:18]=3)[CH:9]=[CH:8][CH:7]=2)=[CH:11][CH:12]=1

참가 물질

7

반응물 4

HCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 23676156Sodium t-butoxideHCID 55291324(R)-1-(4-amino-1H-pyrazol-1-yl)propan-2-olHCID 59199096HCID 59199096, 화합물

생성물 1

HCID 59199014(R)-1-(4-(8-(4-methoxyphenyl)-[1,2,4]triazolo[1,5-a]pyridin-2-ylamino)-1H-pyrazol-1-yl)propan-2-ol수율 76%

시약·촉매·용매 2

HCID 9811564Bis(dibenzylideneacetone)palladium촉매HCID 312751,4-Dioxane용매

반응 조건

온도
170 °C

실험 절차

A suspension of 2-iodo-8-(4-methoxyphenyl)-[1,2,4]triazolo[1,5-a]pyridine (53.6 mg, 0.153 mmol, 1 equiv), (R)-1-(4-amino-1H-pyrazol-1-yl)propan-2-ol (27 mg, 0.19 mmol, 1.2 equiv), sodium tert-butoxide (43.1 mg, 0.448 mmol, 2.94 equiv), 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (15.2 mg, 0.0263 mmol, 0.172 equiv) and tris(dibenzylideneacetone)dipalladium (0) (10.5 mg, 0.0115 mmol, 0.0751 equiv) in dioxane (2 mL) was heated at 170° C. in the microwave for 15 min. The reaction mixture was partitioned between saturated aqueous sodium chloride solution (5 mL) and ethyl acetate (5 mL). The organic was separated, and the aqueous layer was extracted with ethyl acetate (2×5 mL). The collected organic was dried over anhydrous sodium sulfate, filtered, and concentrated in vacuo. Purification by flash column chromatography (5% methanol in dichloromethane) afforded product as a white solid (42.4 mg, 73% yield). 1H NMR (400 MHz, DMSO-d6), δ: 9.32 (s, 1 H, NH), 8.64 (dd, J=6.6, 0.9 Hz, 1 H), 8.13 (dd, J=8.8 Hz, 2 H), 7.81 (s, 1 H), 7.74 (dd, J=7.5, 0.9 Hz, 1 H), 7.47 (s, 1 H), 7.08 (d, J=8.9 Hz, 2 H), 7.03 (t, J=7.0 Hz, 1 H), 4.92 (d, J=4.7 Hz, 1 H, OH), 3.96 (m, 3 H), 3.83 (s, 3 H), 1.04 (d, J=5.8 Hz, 3 H).

후처리

  1. customThe reaction mixture was partitioned between saturated aqueous sodium chloride solution (5 mL) and ethyl acetate (5 mL)
  2. customThe organic was separated
  3. extractionthe aqueous layer was extracted with ethyl acetate (2×5 mL)
  4. dry with materialThe collected organic was dried over anhydrous sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customPurification by flash column chromatography (5% methanol in dichloromethane)

출처 및 근거

ORD 기록
ord-b431360511b74579b8e29df2e98c5c1d
출처 데이터셋
uspto-grants-2013_12
특허 번호
US08609687B2

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