Figure 1.
The basic structure of new and known heterostilbenes and their photocyclization products: new amino-thienostilbenes (I), amino-oxazolostilbenes (II) [27], naphthooxazolo-amines (III) [27], and thienobenzo-triazoles (IV) [29], as proven active compounds, and amino-styryl organic dye (V) [30].
