Reactions of 2-amino-4-methyl-6-(2-pyridyl)- and 2-amino-4-methyl-6-phenyl- 7,8-dihydroindazolo[4,5-d]thiazoles with aldehydes

Article abstract of DOI:10.1023/B:COHC.0000044579.61466.7b

The reaction of 2-amino-4-methyl-6-(2-pyridyl)-7,8-dihydroindazolo[4,5-d] thiazole, obtained by treating 3-methyl-4-oxo-1-(2-pyridyl)-4,5,6,7- tetrahydroindazole with pyridinium bromide perbromide and then with thiourea, and 2-amino-4-methyl-6-phenyl-7,8-