1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → HCID 24748566, compound

Participants

Reaction Steps

To 4-Bromo-but-2-enoic acid (638 mg, 3.87 mmol) in CH2Cl2 was added isopropylmethyamine (1.1 ml, 10.3 mmol), the mixture was stirred for 2 hours followed by addition of (3,4-dichloro-phenyl)-(5,6,7,8-tetrahydro-9-thia-1,3,7-triaza-fluoren-4-yl)-amine (1.0 g, 2.57 mmol), EDCI (493 mg, 2.58 mmol), DIPEA (1.8 ml, 10.3 mmol). The resulting mixture was stirred at RT overnight. Solvents were removed and residue was purified by HPLC to gave the desired compound (500 mg, 13%). 1H-NMR (DMSO-d6) δ 8.46 (m, 1H), 8.39 (s, 1H), 7.88 (m, 1H), 7.62 (m, 1H), 7.42 (t, 1H), 6.67 (m, 1H), 3.94 (m, 2H), 3.87 (m, 4H), 2.75 (m, 2H), 2.11 (s, 3H), 0.96 (d, 6H); LCMS RT=2.72 min, [M+1]+=490.3.

Provenance & Evidence