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

HRID 410920Notes

Reaction equation

HRID 410920 reaction equation
[Cl:1][C:2]1[CH:25]=[CH:24][C:5]2[N:6]=[C:7]([NH:9][C:10]3[N:14]([CH2:15][CH3:16])[C:13]4[CH:17]=[CH:18][C:19]([C:21]([OH:23])=O)=[CH:20][C:12]=4[N:11]=3)[S:8][C:4]=2[CH:3]=1.CN.[CH3:28][N:29](C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>CN(C=O)C>[CH3:28][NH:29][C:21]([C:19]1[CH:18]=[CH:17][C:13]2[N:14]([CH2:15][CH3:16])[C:10]([NH:9][C:7]3[S:8][C:4]4[CH:3]=[C:2]([Cl:1])[CH:25]=[CH:24][C:5]=4[N:6]=3)=[N:11][C:12]=2[CH:20]=1)=[O:23]

Participants

6

Reactant 4

HCID 6329MethylamineHCID 81531DiisopropylethylamineHCID 2733084Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 866568592-(6-Chloro-benzothiazol-2-ylamino)-1-ethyl-1H-benzoimidazole-5-carboxylic acid

Product 1

HCID 583976592-(6-Chloro-benzothiazol-2-ylamino)-1-ethyl-1H-benzoimidazole-5-carboxylic acid methylamideYield 49.6%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

2-(6-Chloro-benzothiazol-2-ylamino)-1-ethyl-1H-benzoimidazole-5-carboxylic acid methylamide (77.0 mg) was prepared by following General Procedure F starting from 2-(6-chloro-benzothiazol-2-ylamino)-1-ethyl-1H-benzoimidazole-5-carboxylic acid (150.0 mg), methylamine (2.0 M solution in THF, 1.0 mL), HBTU (190 mg) and DIEA (0.2 mL) in DMF (1.0 mL). LCMS: m/z 387; and 1H NMR (DMSO-d6, 400 MHz): δ 8.40 (1H, br. s), 8.08 (1H, br. s), 7.95 (1H, m), 7.73 (2H, m), 7.51 (1H, m), 7.41-7.38 (1H, m), 4.21 (1H, bs. s), 2.82-2.80 (3H, d), 1.34-1.30 (3H, t), 2 —NH proton signals were not observed.

Sources & evidence

ORD record
ord-1aa1f5ed20b5473992bacd22e8d93235
Source dataset
uspto-grants-2014_06
Patent number
US08759535B2

Reaction notes

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