Aniline → tert-butyl 6-(2-anilino-2-oxoethyl)-9,10-dichloro-1,4,5,6-tetrahydroazepino[4,5-b]indole-3(2H)-carboxylate

HRID 1370425노트

반응식

HRID 1370425 반응식
[NH2:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.CC(C)N=C=NC(C)C.[C:17]([O:21][C:22]([N:24]1[CH2:37][CH2:36][C:35]2[C:34]3[C:33]([Cl:38])=[C:32]([Cl:39])[CH:31]=[CH:30][C:29]=3[N:28]([CH2:40][C:41](O)=[O:42])[C:27]=2[CH2:26][CH2:25]1)=[O:23])([CH3:20])([CH3:19])[CH3:18]>CN(C1C=CN=CC=1)C.C1COCC1.CCOC(C)=O>[NH:1]([C:41](=[O:42])[CH2:40][N:28]1[C:29]2[CH:30]=[CH:31][C:32]([Cl:39])=[C:33]([Cl:38])[C:34]=2[C:35]2[CH2:36][CH2:37][N:24]([C:22]([O:21][C:17]([CH3:19])([CH3:18])[CH3:20])=[O:23])[CH2:25][CH2:26][C:27]1=2)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

참가 물질

7

반응물 3

HCID 6115AnilineHCID 12734DiisopropylcarbodiimideHCID 22396560[3-(tert-Butoxycarbonyl)-9,10-dichloro-2,3,4,5-tetrahydroazepino[4,5-b]indol-6(1H)-yl]acetic acid

생성물 1

HCID 22396637tert-butyl 6-(2-anilino-2-oxoethyl)-9,10-dichloro-1,4,5,6-tetrahydroazepino[4,5-b]indole-3(2H)-carboxylate수율 68.2%

시약·촉매·용매 3

HCID 142844-(Dimethylamino)pyridine촉매HCID 8028Tetrahydrofuran용매HCID 8857Ethyl Acetate용매

실험 절차

DMAP (60 mg, 0.49 mmol), aniline (0.050 mL, 0.55 mmol) and DIC (0.084 mL, 0.54 mmol) were added to the solution of crude [3-(tert-butoxycarbonyl)-9,10-dichloro-2,3,4,5-tetrahydroazepino[4,5-b]indol-6(1H)-yl]acetic acid (0.20 g, 0.48 mmol) in dry THF (2.5 mL). After 24 h, the reaction was diluted with EtOAc followed by washing with 10% aqueous citric acid (20 mL), saturated aqueous NaHCO3 (20 mL), and brine (20 mL). The organic layer was then dried over Na2SO4, decanted, and concentrated. The crude product was first purified by column chromatography (Biotage, 40S, SIM) with CH2Cl2/EtOAc and yielded 0.16 g of impure product. Then, crystallization from EtOAc/heptane gave 90 mg (37%) of a white solid; mp 208.5-210.0° C.; 1H NMR (300 MHz, DMSO) δ 10.45 (s, 1H), 7.58 (d, J=8.3 Hz, 2H), 7.45 (d, J=9.0 Hz, 1H), 7.30 (m, 3H), 7.07 (m, 1H), 5.08 (br s, 2H), 3.63 (m, 4H), 3.40 (m, 2H), 2.99 (m, 2H), 1.40 (app d, 9H); IR (diffuse reflectance) 3275, 1693, 1671, 1602, 1554, 1449, 1409, 1365, 1319, 1312, 1302, 1254, 1166, 1113, 762 cm−1; MS (EI) m/z 487 (M+), 346, 345, 105, 94, 92, 76, 65, 62, 56, 52; MS (FAB) m/z 488 (M+H+), 488, 487, 434, 433, 432, 431, 388, 57, 42, 41; HRMS (EI) calcd for C25H27Cl2N3O3 487.1429, found 487.1441; Anal. Calcd for C25H27Cl2N3O3: C, 61.48; H, 5.57; N, 8.60; found: C, 61.41; H, 5.70; N, 8.48.

후처리

  1. washby washing with 10% aqueous citric acid (20 mL), saturated aqueous NaHCO3 (20 mL), and brine (20 mL)
  2. dry with materialThe organic layer was then dried over Na2SO4
  3. customdecanted
  4. concentrationconcentrated
  5. customThe crude product was first purified by column chromatography (Biotage, 40S, SIM) with CH2Cl2/EtOAc

출처 및 근거

ORD 기록
ord-def3556b064d46a9bef242af397c8402
출처 데이터셋
uspto-grants-2003_06
특허 번호
US06583135B2

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