## Abstract Derivatives **7**–**13** of a new tricyclic heteroaromatic system, pyrido[3′,2′:5,6]thiopyrano[4,3‐__c__]pyridazin‐3(2__H__,5__H__)‐one, were prepared as potential ligands at the benzodiazepine receptor, in view of their structural analogy with potent ligands such as the pyrazoloquinoli
A Novel Synthesis and Molluscicidal Activity of some Functionally Substituted Pyridine, Pyrido[3,2-c]pyridazine, and Pyrido[3,2-c]pyridazino[2′,3′-a]quinazoline Derivatives
✍ Scribed by Fathy M. Abdelrazek; Alaa El-Din M. Fathy
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 97 KB
- Volume
- 338
- Category
- Article
- ISSN
- 0365-6233
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📜 SIMILAR VOLUMES
## A simple route to the synthesis of the pharmaceutically important thieno[2,3-d]pyrimidine derivatives and of thieno[2,3-b]pyridine derivatives via the use of 5-amin0-3-phenylthiophene-2,Cdicarbonitrile (2) as a starting material is described.
The novel and versatile cyanomethyl 2amino-4-methylthiazolyl ketone (5) was prepared by treatment of bromomethyl 2-amino-4-methyl thiazolyl ketone (4) with potassium cyanide. Reaction of 5 with heterocyclic diazonium salts 6a,b and 10 afforded the corresponding hydrazones 7a,b and 11, respectively.