2016
DOI: 10.1016/j.ejmech.2016.08.021
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Novel urea and bis -urea primaquine derivatives with hydroxyphenyl or halogenphenyl substituents: Synthesis and biological evaluation

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Cited by 31 publications
(31 citation statements)
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“…MCF‐7 cells were sensitive to 15 of the 24 tested compounds, namely, 5 a – d , 2 d , 2 e , 4 a , 4 c – e , and 6 a – d . Similar results were obtained in our previous studies with various PQ derivatives . On the other hand, HepG2 cells were very robust and only responded towards 4 d and compounds from subclass 5 .…”
Section: Resultssupporting
confidence: 90%
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“…MCF‐7 cells were sensitive to 15 of the 24 tested compounds, namely, 5 a – d , 2 d , 2 e , 4 a , 4 c – e , and 6 a – d . Similar results were obtained in our previous studies with various PQ derivatives . On the other hand, HepG2 cells were very robust and only responded towards 4 d and compounds from subclass 5 .…”
Section: Resultssupporting
confidence: 90%
“…Such observations prompted us, and others, to design and prepare novel derivatives of known antimalarial drugs and evaluate their cytostatic potential . Our efforts have been focused on primaquine (PQ), which is an old drug with many flaws (e.g., induction of hemolytic anemia in individuals lacking glucose‐6‐phosphate dehydrogenase, quick metabolism, degradation to inactive carboxyprimaquine, altering the treatment outcome in dependence of CYP 2D6 enzyme activity) but is currently the only available Plasmodium hypnozoitocide .…”
Section: Introductionmentioning
confidence: 99%
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“…Another set of urea derivatives (38, 39, 43e52) was prepared in the opposite way, by the reaction of primaquine with the active ureas BtcNRR 1 , obtained from BtcCl and various amines [80,83]. Only urea 42 was synthesized by the classic isocyanate method, e.g.…”
Section: Primaquine Amide Carbamate Urea and Semicarbazide Derivativesmentioning
confidence: 99%
“…Syntheses of bis-urea derivatives were more complex. Two synthetic methods for the bis-ureas growing from the PQ side were applied: i) the reaction of the active ureas BtcNRR 1 with the common precursor 61 (bis-ureas 75, 76) [80]; ii) the reaction of various amines with the active bis-urea intermediate obtained from 61 and BtcCl (bis-ureas 73, 74, 77, 78, 80e94, 100e104) [80,81,83]. When primaquine was used as an amine, symmetric bis-urea 78 bearing two primaquine moieties was prepared.…”
Section: Primaquine Amide Carbamate Urea and Semicarbazide Derivativesmentioning
confidence: 99%