TY - JOUR T1 - 1,3-Dipolar cycloaddition reactions of pyrazolidinium ylides with vinyl sulfones. A regioselective synthesis of bicyclic pyrazolidinone antibacterial agents JO - Tetrahedron UR - https://doi.org/10.1016/s0040-4020(01)85943-3 PY - 1988/01/01 AU - Jungheim LN AU - Barnett CJ AU - Gray JE AU - Horcher LH AU - Shepherd TA AU - Sigmund SK ED - DO - DOI: 10.1016/s0040-4020(01)85943-3 PB - Elsevier BV VL - 44 IS - 11 SP - 3119 EP - 3126 Y2 - 2025/11/25 ER -