A synthesis of (±)-7-methoxycarbonyl-2-(3-methoxyphenylmethylidene)-8-methyl-3,8-diazabicyclo[3.2.1]Octan-4-one (1b) using dipolar cycloaddition to a 3-oxidopyrazinium
A synthesis of (±)-7-methoxycarbonyl-2-(3-methoxyphenylmethylidene)-8-methyl-3,8-diazabicyclo[3.2.1]Octan-4-one (1b) using dipolar cycloaddition to a 3-oxidopyrazinium