Aniline → HCID 22396590, compound

HRID 2306987Notes

Reaction equation

HRID 2306987 reaction equation
[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[CH:33]=[C:32]([Cl:38])[C:31]([Cl:39])=[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]=[C:31]([Cl:39])[C:32]([Cl:38])=[CH:33][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

Participants

7

Reactant 3

HCID 6115AnilineHCID 12734DiisopropylcarbodiimideHCID 22396895HCID 22396895, compound

Product 1

HCID 22396590HCID 22396590, compoundYield 51.2%

Reagents, catalysts & solvents 3

HCID 142844-(Dimethylamino)pyridineCatalystHCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Procedure

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)-8,9-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 18 h, the reaction was diluted with EtOAc followed by washing with 10% aqueous citric acid, saturated aqueous NaHCO3, and brine. 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 (98:2) to give 0.12 g of impure product. Then, crystallization from EtOAc/heptane gave 91 mg (39%) of a white solid: mp 172.5° C.; IR (diffuse reflectance) 3288, 1699, 1661, 1602, 1550, 1498, 1472, 1442, 1421, 1367, 1309, 1298, 1268, 1252, 1162 cm−1; MS (CI) m/z 488 (M+H+), 390, 388, 354, 153, 152, 136, 95, 93, 52, 51; Anal. Calcd for C25H27Cl2N3O3: C, 61.48; H, 5.57; N, 8.60; found: C, 61.49; H, 5.67; N 8.51.

Workup

  1. washby washing with 10% aqueous citric acid, saturated aqueous NaHCO3, and brine
  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 (98:2)

Sources & evidence

ORD record
ord-640d717449bb4db9b89d9d9d738e2875
Source dataset
uspto-grants-2004_12
Patent number
US06828314B2

Reaction notes

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