4-Chlorobutyl phenyl ether → (2R)-3-(2-methylbenzothiazol-5-yloxy)-1-[4-(4-phenoxybutyl)piperazinyl]propan-2-ol

Participants

Reaction Conditions

Reaction Steps

(4-Chlorobutoxy) benzene (320 mg, 1.39 mmol) in EtOH (17 Ml) was treated with DIEA (0.48 Ml, 2.78 mmol) and 1-(2-methylbenzothiazol-5-yloxy)-3-piperazin-1-ylpropan-2-ol as prepared in Example 3A (427 mg, 1.39 mmol), then stirred 14 hours at 88° C. Upon cooling, concentrated in vacuo and purified on the Isco™ (10 g Redisep™ columns, 100% EtOAc hold 2 min., 8 min. gradient to 20% MeOH/EtOAc, hold 10 min) to provide (2R)-3-(2-methylbenzothiazol-5-yloxy)-1-[4-(4-phenoxybutyl)piperazinyl]propan-2-ol.

Provenance & Evidence