SEARCH Articles Figures Tables Aza-Wittig Cyclizations Aza-Wittig cyclization Carbapenem via Wittig cyclization Cyclization Wittig reactions Intramolecular reaction Wittig-Homer cyclization Wittig-Homer cyclization Wittig-Homer cyclization intramolecular Wittig-Horner cyclization Wittig-Horner cyclization intramolecular Wittig-cyclization sequence Wittig-type cyclization