21901-18-8Relevant articles and documents
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Roe,Seligman
, p. 1729,1731 (1955)
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Novel Substituted Purine Isosteres: Synthesis, Structure-Activity Relationships and Cytotoxic Activity Evaluation
Dimitrakis, Spyridon,Gavriil, Efthymios-Spyridon,Gioti, Katerina,Lougiakis, Nikolaos,Marakos, Panagiotis,Pouli, Nicole,Pousias, Athanasios,Tenta, Roxane
, (2022/01/06)
A number of pyrrolo[2,3-c]pyridines, pyrrolo[3,2-d]pyrimidines and pyrazolo[4,3-d]pyrimidines were designed and synthesized as antiproliferative agents. The target compounds possessed selected substituents in analogous positions on the central scaffold th
Simple preparation method of nevirapine
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Paragraph 0054; 0087; 0088, (2019/10/01)
The invention relates to a simple preparation method of nevirapine. In the invention, 2-nitro-3-methyl-4-halo-5-oxo-n-valerate is obtained by 1,4-addition reaction of 2-nitroacetate and 2-halogenatedcrotonaldehyde, then 3-nitro-4-methylpyridine-2-one is obtained by cyclization with ammonia, and 2-chloro-3-nitro-4-methylpyridine is prepared by chlorination reagent. 2-cyclopropyl aminonicotinic acid is prepared from 2-chloronicotinic acid and cyclopropylamine through a first substitution reaction, 2-[N-cyclopropyl-N-(3-nitro-4-methylpyridine-2-yl)] aminonicotinic acid is prepared from 2-chloro-3-nitro-4-methylpyridine through a second substitution reaction, and nevirapine is prepared through catalytic hydrogenation and amidation reaction. The method has the advantages of cheap and easily available raw materials, mild process, simple and convenient operation, high reaction activity, high product yield and purity, and small amount of three wastes.
Synthesis and Antiproliferative Activity of New pyrazolo[3,4-c]pyridines
Gavriil, Efthymios-Spyridon,Lougiakis, Nikolaos,Pouli, Nicole,Marakos, Panagiotis,Skaltsounis, Alexios-Leandros,Nam, Sangkil,Jove, Richard,Horne, David,Gioti, Katerina,Pratsinis, Harris,Kletsas, Dimitris,Tenta, Roxane
, p. 365 - 374 (2017/06/21)
Background: Several pyrazolopyridines possess promising pharmacological activities, mainly attributed to their antagonistic nature towards the natural purines in many biological processes. Cytotoxicity and anticancer potential of this class of compounds a