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. ... Starting from geranyl acetate, efficient routes to 3(2H)-furanone derivatives via allylic oxidation and cyclization are described which have been utilized in the synthesis of a naturally occurring antitumor agent, geiparvarin. ... A synthesis of geiparvarin via the cyclization of 1,4-diol ...