Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Demethyl salvicanol, a novel rearranged 9(10→20)-abeo-8, 11, 13-triene diterpene, has been synthesize for the first time. The zinc-promoted coupling reaction of benzyl bromide with ketone and the alkylation of ketone with iodide are the key steps. ... Demethyl salvicanol (2), a ...