4-Methylmorpholine → 2-Chloro-4-{[3-(5-chloro-2-methoxy-benzenesulfonyl)-2,3-dihydro-benzooxazole-5-carbonyl]-amino}-benzoic acid ethyl ester

HRID 1360276

反応式

HRID 1360276 の反応式
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([O:23][CH3:24])=[C:6]([S:8]([N:11]2[C:15]3[CH:16]=[C:17]([C:20]([OH:22])=O)[CH:18]=[CH:19][C:14]=3[O:13][CH2:12]2)(=[O:10])=[O:9])[CH:7]=1.[NH2:25][C:26]1[CH:36]=[CH:35][C:29]([C:30]([O:32][CH2:33][CH3:34])=[O:31])=[C:28]([Cl:37])[CH:27]=1.CN1CCOCC1.F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2N=CC=CC=2N=N1>CN(C)C=O.CN(C)C1C=CN=CC=1>[CH2:33]([O:32][C:30](=[O:31])[C:29]1[CH:35]=[CH:36][C:26]([NH:25][C:20]([C:17]2[CH:18]=[CH:19][C:14]3[O:13][CH2:12][N:11]([S:8]([C:6]4[CH:7]=[C:2]([Cl:1])[CH:3]=[CH:4][C:5]=4[O:23][CH3:24])(=[O:9])=[O:10])[C:15]=3[CH:16]=2)=[O:22])=[CH:27][C:28]=1[Cl:37])[CH3:34]

参加物

7

反応物 4

HCID 79724-MethylmorpholineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 13287887Ethyl 4-amino-2-chlorobenzoateHCID 667890473-(5-Chloro-2-methoxy-benzenesulfonyl)-2,3-dihydro-benzooxazole-5-carboxylic acid

生成物 1

HCID 667890592-Chloro-4-{[3-(5-chloro-2-methoxy-benzenesulfonyl)-2,3-dihydro-benzooxazole-5-carbonyl]-amino}-benzoic acid ethyl ester収率 57%

試薬・触媒・溶媒 2

HCID 142844-(Dimethylamino)pyridine触媒HCID 6228Dimethylformamide溶媒

反応条件

温度
60 °C

実験手順

A solution of 3-(5-chloro-2-methoxy-benzenesulfonyl)-2,3-dihydro-benzooxazole-5-carboxylic acid (1.00 g, 2.70 mmol), ethyl 4-amino-2-chlorobenzoate (1.08 g, 5.41 mmol), 4-methylmorpholine (1.37 g, 13.5 mmol), and O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyl-uronium hexafluoro-phosphate (1.54 g, 4.06 mmol) in N,N-dimethylformamide (10 mL) was stirred at room temperature for 15 min, then 4-(dimethylamino)pyridine (337 mg, 2.70 mmol) were added, and the solution was stirred at 60° C. for 18 h. After cooling, the reaction mixture was partitioned between water, heptane, and ethyl acetate. The organic layer was washed with brine, dried (MgSO4), and evaporated. Chromatography (SiO2, heptane-ethyl acetate gradient) produced 2-chloro-4-{[3-(5-chloro-2-methoxy-benzenesulfonyl)-2,3-dihydro-benzooxazole-5-carbonyl]-amino}-benzoic acid ethyl ester (849 mg, 57%). Off-white solid, MS (ISP)=551.2 (M+H)+.

後処理

  1. temperatureAfter cooling
  2. customthe reaction mixture was partitioned between water, heptane, and ethyl acetate
  3. washThe organic layer was washed with brine
  4. dry with materialdried (MgSO4)
  5. customevaporated

出典と根拠

ORDレコード
ord-2d0e9c7a2ed740b59f687a7df359a4a0
出典データセット
uspto-grants-2011_02
特許番号
US07879845B2

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