benzyl 4-{4-hydroxyphenyl}-3-[4-(3-methoxypropyl)-3,4-dihydro-2H-benzo[1,4]oxazin-6-ylmethoxy]piperidinecarboxylate → Benzyl 4-[4-(2-benzyloxycarbonylamino-4-phenylbutoxy)phenyl]-3-[4-(3-methoxypropyl)-3,4-dihydro-2H-benzo[1,4]oxazin-6-ylmethoxy]piperidine-1-carboxylate

Participants

Reaction Steps

Analogously to Method I, 0.250 g of benzyl 4-(4-hydroxyphenyl)-3-[4-(3-methoxypropyl)-3,4-dihydro-2H-benzo[1,4]oxazin-6-ylmethoxy]piperidine-1-carboxylate (Example 259b) and 0.281 g of 2-benzyloxycarbonylamino-4-phenylbutyl toluene-4-sulphonate are reacted. The title compound is obtained as a colourless oil. Rf=0.27 (2:1 EtOAc-heptane); Rt=6.01.

Provenance & Evidence