PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16718329-1 2006 Diols are desymmetrized by a tandem oxidation/Wittig olefination to give alpha,beta-unsaturated hydroxy esters without the requirement for protecting group strategies; the alpha,beta-unsaturated hydroxy esters are transformed into dienyl diesters using a second oxidation/Wittig olefination sequence using PCC. diols 0-5 crystallin gamma D Homo sapiens 306-309