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Preparation of new 5-aroylamino substituted 3-nicotinoyl/isonicotinoyl-1,3,4-thiadiazol-2(3H)-ones with anti-inflammatory activity

โœ Scribed by Silvia Schenone; Olga Bruno; Angelo Ranise; Francesco Bondavalli; Walter Filippelli; Giuseppe Falcone; Brunella Piucci; Salvatore Sorrentino

Book ID
114019418
Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
171 KB
Volume
53
Category
Article
ISSN
0014-827X

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โœ Silvia Schenone; Olga Bruno; Angelo Ranise; Francesco Bondavalli; Walter Filippe ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› John Wiley and Sons โš– 29 KB ๐Ÿ‘ 1 views

## Preparation of New 5-Aroylamino Substituted 3-Nicotinoyl/Isonicotinoyl-1,3,4-thiadiazol-2(3H)-ones with Antiinflammatory Activity. -All the title compounds (V), especially (Vb) and (Vc), exhibit anti-inflammatory activity and are devoid of antipyretic properties.

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## Abstract An efficient twoโ€step synthesis of novel 3โ€(5โ€aminoโ€[1,3,4]thiadiazolโ€2โ€yl)โ€2__H__โ€pyrano[2,3โ€__c__]pyridineโ€2โ€ones was developed. In the first step, a new 2__H__โ€pyrano[2,3โ€__c__]pyridineโ€3โ€carboxamide **5** was prepared by Knoevenagel condensation of pyridoxal hydrochloride with cyano