Synthesis of chiral 3,5-bis(l-phenylalaninyl-l-leucinyl)pyridine Schiff base and their macrocyclic carboxaimide derivatives using 3,5-bis(l-phenylalaninyl)-pyridine methyl ester
2020 ◽
Vol 75
(3)
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pp. 251-258
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Keyword(s):
AbstractA series of linear tetrapeptides 2–7 and cyclooctapeptedopyridine derivatives 8 and 9, were synthesized using Nα-dinicotinoyl-bis[(l-phenylalaninyl-l-leucyl)hydrazide] 2 as starting material. Acid hydrazide 2 was reacted with aromatic or heterocyclic aldehydes to give Schiff base derivatives 3 and 4, respectively. Additionally, compound 2 was reacted with dicarboxylic acid anhydrides ortetracarboxylic diacid anhydrides to give the corresponding linear diimide carboxamides 5–7, and octapeptide tetraimides 8 and 9, respectively. The synthesized products were elucidated by using spectroscopic evidences and they were evaluated for their antibacterial activity by using streptomycin as reference antibiotic drug.
2016 ◽
Vol 71
(7)
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pp. 803-810
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2014 ◽
Vol 38
(5)
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pp. 300-303
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1981 ◽
Vol 11
(1)
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pp. 79-89
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