... the RGD-BioShuttle Derivatization of temozolomide N-(2-Aminopropyl )-4 -( 6-( pyrimidine-2-yl )-1 ,2,4,5-tetrazine-3-yl)benzamide 4 4-( 6-( Pyrimidine-2-yl )-1 ,4-dihydro-1,2,4,5-tetrazine-3-yl)benzoic ... under vacuum and the resulting solid was stored over NaOH. 3-Methyl-4-oxo-N-( 3-( 4-( 6-( pyrimidine-2-yl )-1 ,2,4,5-tetrazine-3-y l )benzamido)propyl )-3 ,4-dihydroimidazo[5,1-d][1,2,3,5]tetrazine- ... 3-Methyl-4-oxo-3,4-dihydroimidazo[5,1-d][1,2,3,5]tetrazine-8-carboxylic acid chloride 7 3-Methyl-4-oxo-3,4-dihydroimidazo[5,1-d][1,2,3,5]tetrazine-8-carboxylic acid was converted to the corresponding...