Introduce the necessary functional groups one by one. This may involve protecting and deprotecting functional groups as needed to control regioselectivity and stereochemistry.
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(1S)-1,3-dimethyl-2-(2-methoxyethyl)-2-cyclohexene-1-carboxylic acid methyl ester
(2RS)-2-methyl-3-oxo-3-[(1S,5S,6R)-1,3,5,6-tetramethyl-2-oxocyclohex-3-enyl]propionic acid
4-hydroxy-6-methyl-3-(phenylacetyl)pyridin-2(1H)-one
(2S,4S)-1-{[tert-Butyl(diphenyl)silyl]oxy}-4,8-dimethylnon-7-en-2-ol
ethanol
Pyridine
