1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → cis-4-[2-(3,5-Bis-trifluoromethyl-phenyl)-acetylamino]-6,7-dimethoxy-2-methyl-3,4-dihydro-2H-quinoline-1-carboxylic acid ethyl ester

HRID 369919

反応式

HRID 369919 の反応式
[CH2:1]([O:3][C:4]([N:6]1[C:15]2[C:10](=[CH:11][C:12]([O:18][CH3:19])=[C:13]([O:16][CH3:17])[CH:14]=2)[C@H:9]([NH2:20])[CH2:8][C@@H:7]1[CH3:21])=[O:5])[CH3:2].[F:22][C:23]([F:39])([F:38])[C:24]1[CH:25]=[C:26]([CH2:34][C:35](O)=[O:36])[CH:27]=[C:28]([C:30]([F:33])([F:32])[F:31])[CH:29]=1.CN(C)CCCN=C=NCC>ClCCl.C(OCC)(=O)C>[CH2:1]([O:3][C:4]([N:6]1[C:15]2[C:10](=[CH:11][C:12]([O:18][CH3:19])=[C:13]([O:16][CH3:17])[CH:14]=2)[C@H:9]([NH:20][C:35](=[O:36])[CH2:34][C:26]2[CH:27]=[C:28]([C:30]([F:31])([F:32])[F:33])[CH:29]=[C:24]([C:23]([F:38])([F:22])[F:39])[CH:25]=2)[CH2:8][C@@H:7]1[CH3:21])=[O:5])[CH3:2]

参加物

6

反応物 3

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 1235873,5-Bis(trifluoromethyl)phenylacetic acidHCID 69832909cis-4-amino-6,7-dimethoxy-2-methyl-3,4-dihydro-2H-quinoline-1-carboxylic acid ethyl ester

生成物 1

HCID 86755981cis-4-[2-(3,5-Bis-trifluoromethyl-phenyl)-acetylamino]-6,7-dimethoxy-2-methyl-3,4-dihydro-2H-quinoline-1-carboxylic acid ethyl ester

試薬・触媒・溶媒 2

HCID 6344Dichloromethane溶媒HCID 8857Ethyl Acetate溶媒

実験手順

To a solution of cis-4-amino-6,7-dimethoxy-2-methyl-3,4-dihydro-2H-quinoline-1-carboxylic acid ethyl ester (150 mg, 0.50 mmol) and 3,5-bis-trifluoromethylphenylacetic acid (138 mg, 0.51 mmol) in 1.5 ml anhydrous dichloromethane was added 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide (192 mg, 0.66 mmol) and the resulting solution was stirred at room temperature overnight. The reaction mixture was diluted with 50 ml ethyl acetate and was washed with 0.1N HCl (2×10 mL), 0.1N NaOH (2×10 mL) and brine (1×10 mL). The organic phase was dried (MgSO4), filtered and concentrated, and the the residue was chromatographed using 20:1 hexanes:ethyl acetate. The title compound crystallized out of the combined fractions (129 mg, 46%). Me 157-9° C.; MS m/z 549 (M+ +1); 1H NMR (CDCl3) δ 1.07 (d, 3H), 7.70-7.78 (m, 3H).

後処理

  1. washwas washed with 0.1N HCl (2×10 mL), 0.1N NaOH (2×10 mL) and brine (1×10 mL)
  2. dry with materialThe organic phase was dried (MgSO4)
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customthe the residue was chromatographed
  6. customThe title compound crystallized out of the combined fractions (129 mg, 46%)
  7. customMe 157-9° C.

出典と根拠

ORDレコード
ord-915341aae4ca4c189a06f1b836f8c89f
出典データセット
uspto-grants-2000_10
特許番号
US06140343

関連ノート

読み込み中…