3-(Trifluoromethyl)phenyl isocyanate → N-[4-Methyl-3-(9H-pyrimido[4,5-b]indol-6-yl)phenyl]-N'-[3-(trifluoromethyl)-phenyl]urea

HRID 77709

Reaction equation

HRID 77709 reaction equation
[N:1]([C:4]1[CH:9]=[CH:8][CH:7]=[C:6]([C:10]([F:13])([F:12])[F:11])[CH:5]=1)=[C:2]=[O:3].[CH3:14][C:15]1[CH:21]=[CH:20][C:18]([NH2:19])=[CH:17][C:16]=1[C:22]1[CH:23]=[C:24]2[C:28](=[CH:29][CH:30]=1)[NH:27][C:26]1[N:31]=[CH:32][N:33]=[CH:34][C:25]2=1.CCN(C(C)C)C(C)C>C1COCC1.CO>[CH3:14][C:15]1[CH:21]=[CH:20][C:18]([NH:19][C:2]([NH:1][C:4]2[CH:9]=[CH:8][CH:7]=[C:6]([C:10]([F:11])([F:12])[F:13])[CH:5]=2)=[O:3])=[CH:17][C:16]=1[C:22]1[CH:23]=[C:24]2[C:28](=[CH:29][CH:30]=1)[NH:27][C:26]1[N:31]=[CH:32][N:33]=[CH:34][C:25]2=1

Participants

6

Procedure

To 1-isocyanato-3-(trifluoromethyl)benzene (9.8 μl, 0.070 mmol) was added a solution of 4-methyl-3-(9H-pyrimido[4,5-b]indol-6-yl)aniline (17.5 mg, 0.064 mmol) and DIPEA (16 μL, 0.089 mmol) in THF (0.4 mL). The reaction was stirred at ambient temperature until LCMS indicated complete reaction, typically 16 hours. The reaction mixture was diluted to a total of 2 mL with THF and MeOH and purified by preparative LCMS to recover the product as a TFA salt (17.1 mg, 46.6%). 1H NMR (300 MHz, DMSO): δ 13.1 (bs, 1H), 9.66 (s, 1H), 9.15 (s, 2H), 8.92 (s, 1H), 8.33 (s, 1H), 8.01 (s, 1H), 7.72 (d, 1H), 7.62 (dd, 1H), 7.4-7.6 (m, 3H), 7.2-7.4 (m, 3H), 2.21 (s, 3H). MS (EI) m/z=462 (M+H).

Workup

  1. customreaction, typically 16 hours
  2. custompurified by preparative LCMS
  3. customto recover the product as a TFA salt (17.1 mg, 46.6%)

Sources & evidence

ORD record
ord-c38b2953652d47b685573ba2f8d9f2d5
Source dataset
uspto-grants-2014_09
Patent number
US08841318B2

Linked notes

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