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

反応式

HRID 1913102 の反応式
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

参加物

7

反応物 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、化合物

生成物 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-ol収率 76%

試薬・触媒・溶媒 2

HCID 9811564Bis(dibenzylideneacetone)palladium触媒HCID 312751,4-Dioxane溶媒

反応条件

温度
170 °C

実験手順

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).

後処理

  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)

出典と根拠

ORDレコード
ord-b431360511b74579b8e29df2e98c5c1d
出典データセット
uspto-grants-2013_12
特許番号
US08609687B2

関連ノート

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