874198-53-5

2H-1,2-Oxazine,3-[3-[[(1,1-dimethylethyl)dimethylsilyl]oxy]propyl]-3,6-dihydro-2-(6-methyl-2-pyridinyl)-6-[(phenylmethoxy)methyl]-4-[[tris(1-methylethyl)silyl]oxy]-,(3R,6R)-