Burghart-Stoll, Heike A serendipitous synthesis of (+)-gregatin B, second structure revisions of the aspertetronins, gregatins, and graminin A, structure revision of the penicilliols. [electronic resource] - Organic letters May 2011 - 2730-3 p. digital Publication Type: Journal Article ISSN: 1523-7052 Standard No.: 10.1021/ol2008318 doi Subjects--Topical Terms: Allyl Compounds--chemistryCyclizationFurans--chemical synthesisLactones--chemical synthesisMolecular StructureStereoisomerism