(R)-3-hydroxy-1-((1R,2R,4R)-2-hydroxy-1,7,7-trimethylbicyclo[2.2.1]heptan-2-yl)-4-methylpentan-1-one

camphor-4-nitrophenylhydrazone

(R)-3-Hydroxy-1-((1R,2R,4R)-2-hydroxy-1,7,7-trimethyl-bicyclo[2.2.1]hept-2-yl)-3-phenyl-propan-1-one

(S)-1-((1R,2R,4R)-2-hydroxy-1,7,7-trimethylbicyclo[2.2.1]heptan-2-yl)-4-nitro-3-phenylbutan-1-one

(S)-3-(4-chlorophenyl)-1-((1R,2R,4R)-2-hydroxy-1,7,7-trimethylbicyclo[2.2.1]heptan-2-yl)-4-nitrobutan-1-one