tert-Butyl acrylate → tert-Butyl 3-(3-(2-(4-(2-isopropylthiazole-4-carbonyl)-1-oxa-4,9-diazaspiro[5.5]undecan-9-yl)ethyl)phenethoxy)propanoate

Participants

Reaction Steps

To a suspension of (9-(3-(2-hydroxyethyl)phenethyl)-1-oxa-4,9-diazaspiro[5.5]undecan-4-yl)(2-isopropylthiazol-4-yl)methanone (limiting reagent) in acetonitrile (5 volumes) was added tert-butyl acrylate (5 molar equivalents) followed by benzyltrimethylammonium hydroxide solution (40% by weight in water, 0.3 molar equivalents). The mixture was stirred at room temperature for 1 hour.

Provenance & Evidence