>> N,N'-dicyclohexylcarbodiimide
>> N,N'-Diisopropylcarbodiimide
>> N,N'-Diethylthlourea
>> N,N'-Diethylcarbodiimide
>> N,N'-Diisoprop thiourea
>> N,N'-Ditortbut thiourea
>> N,N'-Ditortbotylcarbodiimide
>> N,N'-Dieyclohexthiourea
>> Azlocillin
>> 5-Mercapto-1-sulfomethyl-1H-tetrazole disodium salt