2-Methyl-2-(oxan-4-yl)propanoic acid → N-{2-[(2S,4R,5R)-4-(4-Methoxy-phenyl)-5-[4-(3-methoxy-propyl)-3,4-dihydro-2H-benzo[1,4]oxazin-6-ylmethoxy]-1-(toluene-4-sulfonyl)-piperidin-2-yl]-ethyl}-2-(tetrahydro-pyran-4-yl)-isobutyramide

Participants

Reaction Steps

According to general procedure D, 100 mg of 2-[(2S,4R,5R)-4-(4-methoxy-phenyl)-5-[4-(3-methoxy-propyl)-3,4-dihydro-2H-benzo[1,4]oxazin-6-ylmethoxy]-1-(toluene-4-sulfonyl)-piperidin-2-yl]-ethylamine (from example 44b) are reacted with 2-methyl-2-(tetrahydro-pyran-4-yl)-propionic acid [16386-97-3] to afford the title compound as a yellow oil. Rf=0.40 (dichlormethane-methanol-25% ammonia conc. 200:20:1); Rt=3.87.

Provenance & Evidence