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

HRID 77709
Notes
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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
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 3

HCID 94833-(Trifluoromethyl)phenyl isocyanateHCID 81531DiisopropylethylamineHCID 690431204-methyl-3-(9H-pyrimido[4,5-b]indol-6-yl)aniline

Product 1

HCID 59774725N-[4-Methyl-3-(9H-pyrimido[4,5-b]indol-6-yl)phenyl]-N'-[3-(trifluoromethyl)-phenyl]urea

Reagents, catalysts & solvents 2

HCID 887MethanolSolvent
HCID 8028
Tetrahydrofuran
Solvent
2×

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
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08841318B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes