6-(chloromethyl)-4-(3-methoxypropyl)-2H-benzo[b][1,4]oxazin-3(4H)-one → tert-Butyl 4-(4-{2-[2-(2-methoxyphenyl)ethoxy]ethoxy}phenyl)-3-[4-(3-methoxypropyl)-3-oxo-3,4-dihydro-2H-benzo[1,4]oxazin-6-ylmethoxy]piperidine-1-carboxylate

Participants

Reaction Steps

Analogously to Method D, 0.500 g of tert-butyl 3-hydroxy-4-(4-{2-[2-(2-methoxyphenyl)ethoxy]ethoxy}phenyl)piperidine-1-carboxylate and 0.314 g of 6-chloromethyl-4-(3-methoxypropyl)-4H-benzo[1,4]oxazin-3-one (Example 2b) are reacted. The title compound is obtained as an opaque oil. Rf=0.24 (1:1 EtOAc-heptane); Rt=5.82.

Provenance & Evidence