(1S,2S,3S,5R)-(+)-Isopinocampheol may be used in the preparation ofthermotropic chiral nematic side-chain copolymersortho-(diphenylphosphino)phenylphosphonous acid di[(1S,2S,3S,5R)-2,6,6-trimethyl-bicyclo[3.1.1]-hept-3-yl]ester, a phosphino-phosphonite ligandO,O′bis[(1S,2S,3S,5R)2,6,6-trimethylbicyclo[3.1.1]hept-3-yl] dithiophosphoric acid, a bioactive compound with antifungal effect