2-Amino-6-methylbenzothiazole → 3-(indolin-1-ylsulfonyl)-N-(6-methylbenzo[d]thiazol-2-yl)benzamide

HRID 1397950Notes

Reaction equation

HRID 1397950 reaction equation
[N:1]1([S:10]([C:13]2[CH:14]=[C:15]([CH:19]=[CH:20][CH:21]=2)[C:16]([OH:18])=O)(=[O:12])=[O:11])[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[CH2:3][CH2:2]1.[CH3:22][C:23]1[CH:32]=[CH:31][C:26]2[N:27]=[C:28]([NH2:30])[S:29][C:25]=2[CH:24]=1.CCN(C(C)C)C(C)C>CN(C=O)C>[N:1]1([S:10]([C:13]2[CH:14]=[C:15]([CH:19]=[CH:20][CH:21]=2)[C:16]([NH:30][C:28]2[S:29][C:25]3[CH:24]=[C:23]([CH3:22])[CH:32]=[CH:31][C:26]=3[N:27]=2)=[O:18])(=[O:12])=[O:11])[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[CH2:3][CH2:2]1

Participants

5

Reactant 3

HCID 173352-Amino-6-methylbenzothiazoleHCID 81531DiisopropylethylamineHCID 38075053-(2,3-dihydro-1H-indole-1-sulfonyl)benzoic acid

Product 1

HCID 262190033-(indolin-1-ylsulfonyl)-N-(6-methylbenzo[d]thiazol-2-yl)benzamide

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

3-(indolin-1-ylsulfonyl)benzoic acid (3) (200 mg, 0.66 mmol) and 6-methylbenzo[d]thiazol-2-amine (90 mg, 0.55 mmol) in DMF (4 mL) was added DIPEA (213 mg, 1.65 mmol) and pybop (429 mg, 0.82 mmol). using method C. The residue was purified using flash chromatography eluting with 0-30% EtOAc in hexanes. The resulting solid was triturated with dichloromethane/hexanes to give 3-(indolin-1-ylsulfonyl)-N-(6-methylbenzo[d]thiazol-2-yl)benzamide as a white solid. Yield: 78 mg (32%). 1H-NMR: 8.58 (s, 1H), 8.38 (d, J=8 Hz, 1H), 8.02 (d, J=8.0 Hz, 1H), 7.82 (s, 1H), 7.77-7.65 (m, 3H), 7.53 (d, J=8.5 Hz, 1H), 7.30 (dd, J=8.5, 1.0 Hz, 1H), 7.22 (t, J=8.0 Hz, 1H), 7.16 (d, J=7.0 Hz, 1H), 6.99 (dt, J=7.5, 7.5, 1.0 Hz, 1H), 4.02 (t, J=8.5 Hz, 2H), 2.92 (t, J=8.5 Hz, 2H), 2.43 (s, 3H).

Workup

  1. customThe residue was purified
  2. washeluting with 0-30% EtOAc in hexanes
  3. customThe resulting solid was triturated with dichloromethane/hexanes

Sources & evidence

ORD record
ord-a48bc5ddbf5d46a48250ae9ca89e31c5
Source dataset
uspto-grants-2014_12
Patent number
US08901306B2

Reaction notes

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