Heterocycles are an important class of organic compounds accounting for nearly one-third of
the past decade's publications, which are in the field of heterocyclic chemistry. In fact, two …

Publisher Summary The Dimroth rearrangement (DR) is a translocation of two heteroatoms
in a heterocyclic system, with or without changing its ring structure. The conversion of a …

In this paper the novel N-cycloalkyl-(cycloalkylaryl)-2-[(3-R-2-oxo-2H-[1, 2, 4] triazino [2, 3-c]
quinazoline-6-yl) thio] acetamides synthesis by aminolysis of activated by thionyl chloride or …

Abstract Potassium 8-R1-9-R2-10-R3-3-R-2-oxo-2H-[1, 2, 4] triazino [2, 3-c] quinazoline-6-
thiolates 2.1–2.26 were synthesized via cyclocondensation of 6-R-3-(3-R1-4-R2-5-R3 …

It has been shown that heating of 3-R-[1, 2, 4] triazino [2, 3-c] quinazolin-2-ones with 5-fold
excess of hydrazine hydrate in propanol-2 gave the corresponding 3-(2-aminophenyl)-6-R …

Reaction of 4-hydrazinoquinazoline with 2, 4-diketoesters gives the corresponding 3-
acylmethyl-2H-[1, 2, 4] triazino [2, 3-c] quinazolin-2-ones in a one-step procedure via …

Abstract Several novel 6-thio-3-R-2-oxo-2H-[1, 2, 4] triazino [2, 3-c] quinazoline-based
compounds containing an ω-(dialkylamino (heterocyclyl)] alkyl fragment were synthesized to …

The series of 6‐substituted 3‐R1‐2H‐[1, 2, 4] triazino [2, 3‐c] quinazolin‐2‐one was
prepared via condensation of 3‐(2‐aminophenyl)‐6‐R1‐1, 2, 4‐triazin‐5‐ones with …

A simple and effective method has been developed for the synthesis of previously unknown
substituted 3-R 1-6-R 3-6, 7-dihydro-2 H-[1, 2, 4] triazino-[2, 3-c] quinazolin-2-ones by …

The synthesis and antitumor activity of substituted benzo [e][1, 2, 4] triazino [2, 3-c][1, 2, 3]
triazin-2-ones–novel electro-deficient tricyclic compounds–are described. These …