Pyridocoumarins are a class of synthetic and naturally occurring organic compounds with
interesting biological activities. This review focuses on the synthetic strategies for the …

Three different series of ethylidenehydrazonothiazoles 5a-c, 6a-c, ethylidenehydrazono-1, 3-
thiazines 9a-i and ethylidenehydrazonothiazolidine 12 have been prepared via reactions of …

In design and development of bioactive compounds, coumarins as ubiquitous natural
heterocyclic compounds have been widely used. In particular, the combination of the …

A three-component reaction for the synthesis of novel 3-heteroaryl-coumarin utilizing
acetylcoumarin synthon under ultrasonic irradiation was developed using chitosan-grafted …

Investigating novel compounds that may be useful in designing new, less toxic, selective,
and potent breast anticancer agents is still the main challenge for medicinal chemists. Thus …

Background Many heterocyclic compounds containing thiazole or 1, 3, 4-thiadiazole ring in
their skeletons have been reported to possess various pharmacological activities especially …

Novel series of aryl (hetaryl) thiazolylpyridazinedione derivatives were synthesized via one-
pot three-component synthesis of maleic anhydride, thiosemicarbazide and the appropriate …

In this paper, the synthesis of bis-thiazoles and bis-1, 3, 4-thiadiazoles linked to a
thienothiophene nucleus is described. The synthesis was achieved through interaction …

In the present study, preparation of a novel series of N'-(3, 5-diphenyl-1, 3, 4-thiadiazol-2
(3H)-ylidene)-2-oxo-2H-chromene-3-carbohydrazide (8a-m) was prepared by two methods …

The chromenopyridine scaffold represents an important class of heterocyclic compounds
exhibiting a broad spectrum of biological properties. This review describes novel and …