Water → HCID 87289430, compound

Participants

Reaction Steps

To a solution of compound of example 10 (10 mg) in dichloromethane (2 mL) dicyclohexylcarbodiimide (3 mg), and HOBt (2 mg) were added. After 20 min, N-methyl-piperazine (1.5 mg) was added. The reaction mixture was stirred for 18 h under nitrogen atmosphere. Cold water was added to the reaction mixture, the organic layer was separated. The reaction mixture was extracted with dichloromethane (3×5 mL). The combined organic layer was washed with water (2×5 mL). The organic layer was dried over sodium sulphate, and was concentrated. The crude product was purified by preparative HPLC [Eurospere-100, C18 column (250 mm×8 mm), mobile phase: acetonitrile-water (1:1 isocratic)] to obtain the title compound.

Provenance & Evidence