methyl 2-cyano-2-methyl-5-(triisopropylsilyloxy)pentanoate

(R)-2-(hydroxymethyl)-2-methyl-5-(triisopropylsilyloxy)pentanenitrile

ethyl 6-isopropyl-4,5,7-trimethoxy-1-oxo-2,3-dihydro-1H-indene-2-carboxylate