<2S,2(1R),3S,6R,8S,8(3S),9R>-2-(4-Hydroxy-1-methylbutyl)-3,9-dimethyl-8-(3-methyl-4-oxopentyl)-1,7-dioxaspiro<5.5>undecane

(S)-3-Methyl-3-((E)-2-nitro-but-1-enyl)-tetrahydro-pyran-2-one

(S)-3-Ethyl-3-((E)-2-nitro-but-1-enyl)-tetrahydro-pyran-2-one

(S)-3-Methyl-3-((E)-2-nitro-propenyl)-tetrahydro-pyran-2-one

methyl (RS)-4-[((S)-2-{[(benzyloxy)carbonyl]amino}-3-methyl-1-oxobutyl)amino]-4-methyl-5-[methyl(phenyl)amino]-5-oxopentanoate