Pyridine → 4-(4-chlorophenyl)-N-(2-methylbenzothiazol-5-yl)cyclohexane-1-carboxamide

HRID 491571

反応式

HRID 491571 の反応式
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]2[CH2:13][CH2:12][CH:11]([C:14]([OH:16])=O)[CH2:10][CH2:9]2)=[CH:4][CH:3]=1.C(Cl)(=O)C(Cl)=O.N1C=CC=CC=1.[NH2:29][C:30]1[CH:31]=[CH:32][C:33]2[S:37][C:36]([CH3:38])=[N:35][C:34]=2[CH:39]=1>C(Cl)Cl.CO.CN(C=O)C>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([CH:8]2[CH2:9][CH2:10][CH:11]([C:14]([NH:29][C:30]3[CH:31]=[CH:32][C:33]4[S:37][C:36]([CH3:38])=[N:35][C:34]=4[CH:39]=3)=[O:16])[CH2:12][CH2:13]2)=[CH:6][CH:7]=1

参加物

8

反応条件

温度
45 °C

実験手順

A suspension of 4-(4-chlorophenyl)-cyclohexane-1-carboxylic acid (100 mg, 0.42 mmol) in DCM (10 ml) was treated with catalytic DMF and oxalyl chloride (110 ul, 1.26 mmol) at 0° C. and the mixture was then stirred at room temp. for 1 h and at 45° C. for 2 h. The solvent and excess oxalyl chloride was removed in vacuo and the residue resuspended in DCM (5 ml). To this was added pyridine (35 ul, 0.42 mmol) and 5-amino-2-methylbenzothiazole (63 mg, 0.38 mmol) and the reaction stirred at room temp. overnight. MeOH (1 ml) was added and the mixture was washed with sat. aq. sodium bicarbonate solution and brine then dried (MgSO4) and concentrated to give the title compound as an off-white solid (148 mg). 1H NMR (400 MHz, DMSO) δ (ppm): 8.37 (d, 1H), 7.96 (d, 1H), 7.63 (dd, 1H), 7.40 (d, 2H), 7.38 (d, 2H), 2.83 (s, 3H), 2.49-2.63 (m, 2H), 2.04 (m, 2H), 1.94 (m, 2H), 1.69 (m, 2H), 1.53 (m, 2H). MS(ES): MH+ 385/387, M−H+ 383/385.

後処理

  1. customThe solvent and excess oxalyl chloride was removed in vacuo
  2. stirringthe reaction stirred at room temp. overnight
  3. washthe mixture was washed with sat. aq. sodium bicarbonate solution and brine
  4. dry with materialthen dried (MgSO4)
  5. concentrationconcentrated

出典と根拠

ORDレコード
ord-33710b17ac3a426daf7d3f18064a41b1
出典データセット
uspto-grants-2009_05
特許番号
US07531558B2

関連ノート

読み込み中…