Cesium carbonate → 6-chloro-4-(2-cyano-4-(trifluoromethyl)phenyl)-N-(4-methoxybenzyl)-N-(thiazol-2-yl)-3,4-dihydro-2H-benzo[b][1,4]oxazine-7-sulfonamide

HRID 528598노트

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HRID 528598 반응식
[Cl:1][C:2]1[C:11]([S:12]([N:15]([CH2:21][C:22]2[CH:27]=[CH:26][C:25]([O:28][CH3:29])=[CH:24][CH:23]=2)[C:16]2[S:17][CH:18]=[CH:19][N:20]=2)(=[O:14])=[O:13])=[CH:10][C:5]2[O:6][CH2:7][CH2:8][NH:9][C:4]=2[CH:3]=1.Br[C:31]1[CH:38]=[CH:37][C:36]([C:39]([F:42])([F:41])[F:40])=[CH:35][C:32]=1[C:33]#[N:34].CC1(C)C2C(=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=CC=2)OC2C(P(C3C=CC=CC=3)C3C=CC=CC=3)=CC=CC1=2.C(=O)([O-])[O-].[Cs+].[Cs+]>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[Cl:1][C:2]1[C:11]([S:12]([N:15]([CH2:21][C:22]2[CH:27]=[CH:26][C:25]([O:28][CH3:29])=[CH:24][CH:23]=2)[C:16]2[S:17][CH:18]=[CH:19][N:20]=2)(=[O:14])=[O:13])=[CH:10][C:5]2[O:6][CH2:7][CH2:8][N:9]([C:31]3[CH:38]=[CH:37][C:36]([C:39]([F:42])([F:41])[F:40])=[CH:35][C:32]=3[C:33]#[N:34])[C:4]=2[CH:3]=1

참가 물질

6

반응물 4

HCID 10796Cesium carbonateHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 122239802-Bromo-5-(trifluoromethyl)benzonitrileHCID 897614296-chloro-N-(4-methoxybenzyl)-N-(thiazol-2-yl)-3,4-dihydro-2H-benzo[b][1,4]oxazine-7-sulfonamide

생성물 1

HCID 897619626-chloro-4-(2-cyano-4-(trifluoromethyl)phenyl)-N-(4-methoxybenzyl)-N-(thiazol-2-yl)-3,4-dihydro-2H-benzo[b][1,4]oxazine-7-sulfonamide

시약·촉매·용매 1

HCID 9811564Bis(dibenzylideneacetone)palladium촉매

실험 절차

A 150-mL pressure vessel was charged with 6-chloro-N-(4-methoxybenzyl)-N-(thiazol-2-yl)-3,4-dihydro-2H-benzo[b][1,4]oxazine-7-sulfonamide (2.32 g, 5.13 mmol), 2-bromo-5-(trifluoromethyl)benzonitrile (2.57 g, 10.27 mmol), Xantphos (0.594 g, 1.027 mmol), Pd2(dba)3 (0.470 g, 0.513 mmol), and cesium carbonate (5.02 g, 15.40 mmol). The vessel was flushed with Ar (g), then 1,4-dioxane (51.3 ml) was added. The vessel was sealed and placed in a 100° C. heating bath for 16 h. The mixture was cooled to room temperature, diluted with water, and extracted with EtOAc (3×). The combined organic extracts were dried over sodium sulfate, filtered, and concentrated. The crude product was purified by chromatography on silica gel (50-g Redi-Sep Gold column, 25-g silica gel loading column, 25-75% EtOAc/Heptane) to give 6-chloro-4-(2-cyano-4-(trifluoromethyl)phenyl)-N-(4-methoxybenzyl)-N-(thiazol-2-yl)-3,4-dihydro-2H-benzo[b][1,4]oxazine-7-sulfonamide as a yellow solid: 1H NMR (400 MHz, DMSO-d6) δ=8.46 (d, J=2.1 Hz, 1 H), 8.15 (dd, J=1.8, 8.7 Hz, 1 H), 7.81 (d, J=8.5 Hz, 1 H), 7.50 (s, 1 H), 7.45 (d, J=3.6 Hz, 1 H), 7.32 (d, J=3.5 Hz, 1 H), 7.28-7.21 (m, 2 H), 6.90-6.78 (m, 3 H), 5.17 (s, 2 H), 4.40-4.34 (m, 2 H), 3.91-3.85 (m, 2 H), 3.71 (s, 3 H); m/z (ESI) 621.0 (M+H)+.

후처리

  1. customThe vessel was flushed with Ar (g)
  2. addition1,4-dioxane (51.3 ml) was added
  3. customThe vessel was sealed
  4. customplaced in a 100° C.
  5. temperatureheating bath for 16 h
  6. additiondiluted with water
  7. extractionextracted with EtOAc (3×)
  8. dry with materialThe combined organic extracts were dried over sodium sulfate
  9. filtrationfiltered
  10. concentrationconcentrated
  11. customThe crude product was purified by chromatography on silica gel (50-g Redi-Sep Gold column, 25-g silica gel loading column, 25-75% EtOAc/Heptane)

출처 및 근거

ORD 기록
ord-3dcb643472de4acb8e54a5c4429a804f
출처 데이터셋
uspto-grants-2016_05
특허 번호
US09346798B2

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