Trifluoroacetic acid → 3-(5-amino-2,4-difluorophenyl)-1-methyl-7-(methylamino)-1,6-naphthyridin-2(1H)-one

HRID 1257159

反応式

HRID 1257159 の反応式
COC1C=CC([CH2:7][N:8](C)[C:9]2[CH:18]=[C:17]3[C:12]([CH:13]=[C:14]([C:21]4[CH:26]=[C:25]([NH2:27])[C:24]([F:28])=[CH:23][C:22]=4[F:29])[C:15](=[O:20])[N:16]3[CH3:19])=[CH:11][N:10]=2)=CC=1.C(O)(C(F)(F)F)=O>C(Cl)Cl>[NH2:27][C:25]1[C:24]([F:28])=[CH:23][C:22]([F:29])=[C:21]([C:14]2[C:15](=[O:20])[N:16]([CH3:19])[C:17]3[C:12]([CH:13]=2)=[CH:11][N:10]=[C:9]([NH:8][CH3:7])[CH:18]=3)[CH:26]=1

参加物

4

反応物 2

HCID 6422Trifluoroacetic acidHCID 690964967-((4-methoxybenzyl)(methyl)amino)-3-(5-amino-2,4-difluorophenyl)-1-methyl-1,6-naphthyridin-2(1H)-one

生成物 1

HCID 692973103-(5-amino-2,4-difluorophenyl)-1-methyl-7-(methylamino)-1,6-naphthyridin-2(1H)-one収率 30.7%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

A solution of 7-((4-methoxybenzyl)(methyl)amino)-3-(5-amino-2,4-difluorophenyl)-1-methyl-1,6-naphthyridin-2(1H)-one (3 g, 6.8 mmol) in DCM (100 mL) was treated with TFA (20 mL) and stirred at RT for 6 h. The mixture was extracted with water and the combined aqueous layers were neutralized with NH3H2O. The precipitate was collected by filtration and dried to give 3-(5-amino-2,4-difluorophenyl)-1-methyl-7-(methylamino)-1,6-naphthyridin-2(1H)-one (661 mg, 30% yield). 1H NMR (300 MHz, DMSO-d6): δ 8.39 (s, 1H), 7.78 (s, 1H), 7.08-6.93 (m, 2H), 6.80 (dd, J=10.2, 8.1 Hz, 1H), 6.16 (s, 1H), 5.00 (s, 2H), 3.50 (s, 3H), 2.84 (d, J=4.8 Hz, 3H); MS (ESI) m/z: 317.0 [M+H]+.

後処理

  1. extractionThe mixture was extracted with water
  2. filtrationThe precipitate was collected by filtration
  3. customdried

出典と根拠

ORDレコード
ord-a0daca0c931241aeb8728f39c3d63629
出典データセット
uspto-grants-2013_06
特許番号
US08461179B1

関連ノート

読み込み中…