Methylamine → 1-Ethyl-2-(6-trifluoromethoxy-benzothiazol-2-ylamino)-1H-benzoimidazole-5-carboxylic acid methylamide

HRID 410887Notes

Reaction equation

HRID 410887 reaction equation
[CH2:1]([N:3]1[C:7]2[CH:8]=[CH:9][C:10]([C:12]([OH:14])=O)=[CH:11][C:6]=2[N:5]=[C:4]1[NH:15][C:16]1[S:17][C:18]2[CH:24]=[C:23]([O:25][C:26]([F:29])([F:28])[F:27])[CH:22]=[CH:21][C:19]=2[N:20]=1)[CH3:2].CN.C1C=CC(P(N=[N+]=[N-])(C2C=CC=CC=2)=O)=CC=1.C[CH2:50][N:51](C(C)C)C(C)C>CN(C=O)C>[CH3:50][NH:51][C:12]([C:10]1[CH:9]=[CH:8][C:7]2[N:3]([CH2:1][CH3:2])[C:4]([NH:15][C:16]3[S:17][C:18]4[CH:24]=[C:23]([O:25][C:26]([F:28])([F:27])[F:29])[CH:22]=[CH:21][C:19]=4[N:20]=3)=[N:5][C:6]=2[CH:11]=1)=[O:14]

Participants

6

Reactant 4

HCID 6329MethylamineHCID 81531DiisopropylethylamineHCID 199401P,P-Diphenylphosphinic azideHCID 583976671-ethyl-2-(6-trifluoromethoxybenzothiazol-2-ylamino)-1H-benzoimidazole-5-carboxylic acid

Product 1

HCID 866568461-Ethyl-2-(6-trifluoromethoxy-benzothiazol-2-ylamino)-1H-benzoimidazole-5-carboxylic acid methylamide

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

1-Ethyl-2-(6-trifluoromethoxy-benzothiazol-2-ylamino)-1H-benzoimidazole-5-carboxylic acid methylamide (50.0 mg) was prepared by following General Procedure F starting from 1-ethyl-2-(6-trifluoromethoxy-benzothiazol-2-ylamino)-1H-benzoimidazole-5-carboxylic acid (100.0 mg), methylamine (2.0 M solution in THF, 1 mL), DPPA (82.0 mg), and DIEA (0.1 mL) in DMF (1.0 mL). LCMS: m/z 437; and 1H NMR (CD3OD, 400 MHz): δ 7.93 (1H, d), 7.73-7.70 (2H, m), 7.64-7.63 (1H, d), 7.40-7.38 (1H, m), 7.25-7.22 (1H, m), 4.25-4.23 (2H, q), 2.95 (3H, s), 1.41-1.38 (3H, t), 2 —NH proton signals were not observed.

Sources & evidence

ORD record
ord-1365c66bd4834dd4b7b1d9ad73a7cc15
Source dataset
uspto-grants-2014_06
Patent number
US08759535B2

Reaction notes

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