Trimethylsilyl isocyanate → {2-[(1H-benzimidazol-2-ylmethyl)-(5,6,7,8-tetrahydroquinolin-8-yl)-amino]-ethyl}-urea

HRID 899710Notes

Reaction equation

HRID 899710 reaction equation
[NH:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[CH2:10][N:11]([CH:15]1[C:24]2[N:23]=[CH:22][CH:21]=[CH:20][C:19]=2[CH2:18][CH2:17][CH2:16]1)[CH2:12][CH2:13][NH2:14].C[Si]([N:29]=[C:30]=[O:31])(C)C>C(O)(C)C>[NH:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[CH2:10][N:11]([CH:15]1[C:24]2[N:23]=[CH:22][CH:21]=[CH:20][C:19]=2[CH2:18][CH2:17][CH2:16]1)[CH2:12][CH2:13][NH:14][C:30]([NH2:29])=[O:31]

Participants

4

Reactant 2

HCID 70696Trimethylsilyl isocyanateHCID 10149770N-(1H-benzimidazol-2-ylmethyl)-N-(5,6,7,8-tetrahydroquinolin-8-yl)-ethane-1,2-diamine

Product 1

HCID 59694091{2-[(1H-benzimidazol-2-ylmethyl)-(5,6,7,8-tetrahydroquinolin-8-yl)-amino]-ethyl}-urea

Reagents, catalysts & solvents 1

HCID 3776IsopropanolSolvent

Procedure

A solution of N-(1H-benzimidazol-2-ylmethyl)-N-(5,6,7,8-tetrahydroquinolin-8-yl)-ethane-1,2-diamine (0.10 g, 0.31 mmol) in isopropanol (2 mL) was treated with trimethylsilylisocyanate (60 μL, 0.44 mmol) at room temperature. The reaction was stirred 20 hours and concentrated under reduced pressure. This afforded, after column chromatography with silica gel (2:0.5:97.5 MeOH:NH4OH:CH2Cl2), {2-[(1H-benzimidazol-2-ylmethyl)-(5,6,7,8-tetrahydroquinolin-8-yl)-amino]-ethyl}-urea (67 mg, 59%). 1H NMR (CDCl3) δ 1.68 (m, 1H), 1.86 (m, 1H), 2.02 (br, 1H), 2.23 (br, 1H), 2.65 (m, 1H), 2.82 (m, 3H), 3.17 (m, 2H), 4.00 (m, 1H), 4.07 (d, 1H, J=15.0 Hz), 4.18 (d, 1H, J=15.0 Hz), 4.43 (br, 2H, NH2), 6.00 (br, 1H, NH), 7.18 (m, 3H), 7.46 (d, 1H, J=7.0 Hz), 7.45-7.70 (br, 2H), 8.55 (d, 1H, J=4.0 Hz).

Workup

  1. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-70887a1b566d4bd0a11adbb2138a538a
Source dataset
uspto-grants-2008_04
Patent number
US07354932B2

Reaction notes

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