1,2-Dichloroethane → 4-bromo-7-(4-methylpiperazine-1-carbonyl)-9H-carbazole-1-carboxamide

HRID 661902

반응식

HRID 661902 반응식
[Br:1][C:2]1[CH:14]=[CH:13][C:12]([C:15](=[O:17])[NH2:16])=[C:11]2[C:3]=1[C:4]1[CH:5]=[CH:6][C:7]([C:18](O)=[O:19])=[CH:8][C:9]=1[NH:10]2.C(Cl)CCl.C1C=CC2N(O)N=NC=2C=1.[CH3:35][N:36]1[CH2:41][CH2:40][NH:39][CH2:38][CH2:37]1>C1COCC1.C(Cl)Cl.CN(C=O)C>[Br:1][C:2]1[C:3]2[C:4]3[C:9](=[CH:8][C:7]([C:18]([N:39]4[CH2:40][CH2:41][N:36]([CH3:35])[CH2:37][CH2:38]4)=[O:19])=[CH:6][CH:5]=3)[NH:10][C:11]=2[C:12]([C:15]([NH2:16])=[O:17])=[CH:13][CH:14]=1

참가 물질

6

반응물 4

HCID 111,2-DichloroethaneHCID 531671-MethylpiperazineHCID 757711-HydroxybenzotriazoleHCID 593750825-bromo-8-carbamoyl-9H-carbazole-2-carboxylic acid2회

생성물 1

HCID 468335224-bromo-7-(4-methylpiperazine-1-carbonyl)-9H-carbazole-1-carboxamide수율 76.1%

시약·촉매·용매 1

HCID 86642945dichloromethane tetrahydrofuran DMF용매

실험 절차

A suspension of 5-bromo-8-carbamoyl-9H-carbazole-2-carboxylic acid (Intermediate 49-1, 1.84 g, 4.97 mmol), EDC (1.334 g, 6.96 mmol), and HOBT (1.066 g, 6.96 mmol) in THF-DCM-DMF (4:1:1) (124 mL) was treated with 1-methylpiperazine (1.656 mL, 14.91 mmol) and the mixture was stirred at rt for 3 days. The mixture was concentrated and the residue was partitioned between DCM and NaHCO3 (aq). The organic phase was washed with brine, dried and concentrated to afford an oil. This was purified by column chromatography (DCM-2 M methanolic ammonia, 100:0 to 95:5 to 92.5:7.5). The resulting solid was suspended in EtOAc, collected by filtration and dried to provide 4-bromo-7-(4-methylpiperazine-1-carbonyl)-9H-carbazole-1-carboxamide (1.57 g, 76%). 1H NMR (400 MHz, DMSO-d6) δ 11.83 (s, 1H) 8.57 (d, J=8.13 Hz, 1H) 8.20 (br. s., 1H) 7.84 (d, J=8.35 Hz, 1H) 7.79 (s, 1H) 7.56 (br. s., 1H) 7.42 (d, J=8.13 Hz, 1H) 7.22 (d, J=8.13 Hz, 1H) 3.30-3.70 (m, 4H) 2.19-2.39 (m, 4H) 2.16 (s, 3H). Mass spectrum m/z 415, 417 (M+H)+.

후처리

  1. concentrationThe mixture was concentrated
  2. customthe residue was partitioned between DCM and NaHCO3 (aq)
  3. washThe organic phase was washed with brine
  4. customdried
  5. concentrationconcentrated
  6. customto afford an oil
  7. customThis was purified by column chromatography (DCM-2 M methanolic ammonia, 100:0 to 95:5 to 92.5:7.5)
  8. filtrationcollected by filtration
  9. customdried

출처 및 근거

ORD 기록
ord-8523230392b840b5b5de5c2e8b7a95e6
출처 데이터셋
uspto-grants-2011_12
특허 번호
US08084620B2

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