Luo, Zhushou Formation of the BC ring system of upenamide via a Staudinger/aza-Wittig reaction. [electronic resource] - Organic letters Nov 2007 - 5051-4 p. digital Publication Type: Journal Article; Research Support, N.I.H., Extramural ISSN: 1523-7060 Standard No.: 10.1021/ol702255k doi Subjects--Topical Terms: Crystallography, X-RayHydrolysisModels, MolecularMolecular ConformationQuinolizines--chemical synthesisSpiro Compounds--chemical synthesisStereoisomerism