Hydrochloric Acid → 2-(4-(4-chloro-1H-imidazol-1-yl)-3-methoxyphenylamino)-4-(4-fluorophenyl)-4,5-dihydrobenzo[d]thiazol-6(7H)-one

HRID 1803264ノート

反応式

HRID 1803264 の反応式
[Cl:1][C:2]1[N:3]=[CH:4][N:5]([C:7]2[CH:12]=[CH:11][C:10]([NH:13][C:14]3[S:15][C:16]4[CH2:26][C:21]5(OCC[O:22]5)[CH2:20][CH:19]([C:27]5[CH:32]=[CH:31][C:30]([F:33])=[CH:29][CH:28]=5)[C:17]=4[N:18]=3)=[CH:9][C:8]=2[O:34][CH3:35])[CH:6]=1.Cl>CC(C)=O>[Cl:1][C:2]1[N:3]=[CH:4][N:5]([C:7]2[CH:12]=[CH:11][C:10]([NH:13][C:14]3[S:15][C:16]4[CH2:26][C:21](=[O:22])[CH2:20][CH:19]([C:27]5[CH:32]=[CH:31][C:30]([F:33])=[CH:29][CH:28]=5)[C:17]=4[N:18]=3)=[CH:9][C:8]=2[O:34][CH3:35])[CH:6]=1

参加物

4

反応物 2

HCID 313Hydrochloric AcidHCID 46864555N-(4-(4-chloro-1H-imidazol-1-yl)-3-methoxyphenyl)-4-(4-fluorophenyl)-5,7-dihydro-4H-spiro[benzo[d]thiazole-6,2'-[1,3]dioxolan]-2-amine

生成物 1

HCID 581100012-(4-(4-chloro-1H-imidazol-1-yl)-3-methoxyphenylamino)-4-(4-fluorophenyl)-4,5-dihydrobenzo[d]thiazol-6(7H)-one

試薬・触媒・溶媒 1

HCID 180Acetone溶媒

実験手順

A mixture of N-(4-(4-chloro-1H-imidazol-1-yl)-3-methoxyphenyl)-4-(4-fluorophenyl)-5,7-dihydro-4H-spiro[benzo[d]thiazole-6,2′-[1,3]dioxolan]-2-amine (54 mg, 0.105 mmol, example 74), aqueous 1.0 M HCl (0.16 mL), and acetone (0.13 mL) was heated at reflux for 24 h. Partial conversion of the starting material to the desired product was evident by LCMS analysis of a crude aliquot. An additional portion of aqueous 1.0 M HCl (0.20 mL) was added and the acetone was removed in vacuo. The resulting mixture was heated at 75° C. for an additional 24 h. The crude reaction was quenced with saturated sodium bicarbonate solution and extracted with EtOAc. The organic layer was concentrated in vacuo. The crude product was purified using preparatory TLC (50% acetone/hexanes) to give 22 mg (43% yield) of the titled compound as an oil. LC-MS (M+H)+ 469.2. 1H NMR (400 MHz, chloroform-d) δ ppm 7.54 (d, J=1.51 Hz, 1 H) 7.46 (d, J=2.52 Hz, 1 H) 7.09-7.20 (m, 3 H) 6.94-7.07 (m, 3 H) 6.77 (dd, J=8.44, 2.39 Hz, 1 H) 4.46 (t, J=6.42 Hz, 1 H) 3.63-3.67 (m, 2 H) 3.62 (s, 3 H) 3.08 (dd, J=14.35, 6.55 Hz, 1 H) 2.86 (dd, J=14.23, 6.42 Hz, 1 H).

後処理

  1. temperaturewas heated
  2. temperatureat reflux for 24 h

出典と根拠

ORDレコード
ord-775df72ce9464490b6a73d7b2b69d954
出典データセット
uspto-grants-2013_01
特許番号
US08349880B2

反応ノート

読み込み中…