Media type: E-Article Title: C2-symmetric enantiopure bis-α,β-butenolides as diastereoselective substrates in ethylene photocycloaddition Contributor: de March, Pedro; Figueredo, Marta; Font, Josep; Raya, Javier imprint: Elsevier BV, 1999 Published in: Tetrahedron Letters Language: English DOI: 10.1016/s0040-4039(99)00172-0 ISSN: 0040-4039 Keywords: Organic Chemistry ; Drug Discovery ; Biochemistry Origination: Footnote: