Stereoselective synthesis and stereochemistry of seven isomeric spiroacetal structures based on the C17–C28 fragment (CD rings) of spongistatin 1 - Jacobs, Mark F.; Glenn, Matthew P.; McGrath, Matthew J.; Zhang, Hesheng; Brereton, Ian; Kitching, William (ARKIVOC, 2001)
doi: 10.3998/ark.5550190.0002.710