6-(chloromethyl)-4-(3-methoxypropyl)-2H-benzo[b][1,4]oxazin-3(4H)-one → benzyl 4-(4-methoxycarbonylphenyl)-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, 5.25 g of benzyl 3-hydroxy-4-(4-methoxycarbonylphenyl)piperidine-1-carboxylate and 0.572 g of 6-chloromethyl-4-(3-methoxypropyl)-4H-benzo[1,4]oxazin-3-one are reacted. The title compound is obtained as a yellowish oil. Rf=0.28 (2:1 EtOAc-heptane). Rt=5.06.

Provenance & Evidence