Trifluoroacetic acid → 2-(3-(5-chloro-2-methoxyphenyl)-4-(pyrazolo[1,5-a]pyrimidine-3-carboxamido)-1H-pyrazol-1-yl)acetic acid

HRID 1466607ノート

反応式

HRID 1466607 の反応式
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([O:33][CH3:34])=[C:6]([C:8]2[C:12]([NH:13][C:14]([C:16]3[CH:17]=[N:18][N:19]4[CH:24]=[CH:23][CH:22]=[N:21][C:20]=34)=[O:15])=[CH:11][N:10]([CH2:25][C:26]([O:28]C(C)(C)C)=[O:27])[N:9]=2)[CH:7]=1.C(O)(C(F)(F)F)=O>ClCCl>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([O:33][CH3:34])=[C:6]([C:8]2[C:12]([NH:13][C:14]([C:16]3[CH:17]=[N:18][N:19]4[CH:24]=[CH:23][CH:22]=[N:21][C:20]=34)=[O:15])=[CH:11][N:10]([CH2:25][C:26]([OH:28])=[O:27])[N:9]=2)[CH:7]=1

参加物

4

反応物 2

HCID 6422Trifluoroacetic acidHCID 66900073tert-butyl 2-(3-(5-chloro-2-methoxyphenyl)-4-(pyrazolo[1,5-a]pyrimidine-3-carboxamido)-1H-pyrazol-1-yl)acetate

生成物 1

HCID 668796642-(3-(5-chloro-2-methoxyphenyl)-4-(pyrazolo[1,5-a]pyrimidine-3-carboxamido)-1H-pyrazol-1-yl)acetic acid収率 86%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

To tert-butyl 2-(3-(5-chloro-2-methoxyphenyl)-4-(pyrazolo[1,5-a]pyrimidine-3-carboxamido)-1H-pyrazol-1-yl)acetate (1.85 g, 3.83 mmol) in 50 mL dichloromethane was added 30 ml of TFA. The mixture was stirred 2 h at ambient temperature, then concentrated and recrystallized from EtOAc to furnish 1.4 g (86%) of 2-(3-(5-chloro-2-methoxyphenyl)-4-(pyrazolo[1,5-a]pyrimidine-3-carboxamido)-1H-pyrazol-1-yl)acetic acid as a colorless solid. LCMS (ESI) m+H=427.1. 1H NMR (400 MHz, CD3OD) δ 9.95 (s, 1H), 9.08 (m, 1H), 8.69 (m, 1H), 8.63 (s, 1H), 8.34 (s, 1H), 7.47 (m, 2H), 7.21 (m, 2H), 5.03 (s, 2H), 3.86 (s, 3H).

後処理

  1. concentrationconcentrated
  2. customrecrystallized from EtOAc

出典と根拠

ORDレコード
ord-389810839936422bb1643f88f30b0d1b
出典データセット
uspto-grants-2015_04
特許番号
US08999998B2

反応ノート

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