Diisopropylethylamine → (2R)-3-[4-(4-cyclopentyloxybutyl)piperazinyl]-1-(2-methylbenzothiazol-5-yloxy)propan-2-ol

Participants

Reaction Steps

A solution of (4-bromobutoxy)cyclopentane (400 mg, 1.81 mmol) in EtOH (5 mL) was treated with DIEA (0.64 mL, 3.62 mmol) and 1-(2-methylbenzothiazol-5-yloxy)-3-piperazin-1-ylpropan-2-ol as prepared in Example 3A (557 mg, 1.81 mmol). The solution was stirred at reflux 15 hours. Upon cooling, the product was concentrated and purified by flash column chromatography (10% MeOH/EtOAc) to yield (2R)-3-[4-(4-cyclopentyloxybutyl)piperazinyl]-1-(2-methylbenzothiazol-5-yloxy)propan-2-ol.

Provenance & Evidence