Synthesis of novel 1,2,4-trioxanes and antimalarial evaluation against multidrug-resistant Plasmodium yoelii nigeriensis

2021 ◽  
pp. 128305
Author(s):  
Monika Shukla ◽  
Mohammad Hassam ◽  
Dinesh Kumar Yadav ◽  
Siddharth Sharma ◽  
Chandan Singh ◽  
...  
Keyword(s):  
Multidrug Resistant ◽  
Plasmodium Yoelii

scholarly journals Sontochin as a Guide to the Development of Drugs against Chloroquine-Resistant Malaria

2012 ◽  
Vol 56 (7) ◽  
pp. 3475-3480 ◽  
Author(s):  
Sovitj Pou ◽  
Rolf W. Winter ◽  
Aaron Nilsen ◽  
Jane Xu Kelly ◽  
Yuexin Li ◽  
...  
Keyword(s):  
Multidrug Resistant ◽  
Plasmodium Yoelii ◽  
Significant Activity ◽  
Drug Resistant ◽  
Content Type ◽  
Resistant Strains ◽  
Drug Resistant Strains ◽  
Derivatives Of

ABSTRACTSontochin was the original chloroquine replacement drug, arising from research by Hans Andersag 2 years after chloroquine (known as “resochin” at the time) had been shelved due to the mistaken perception that it was too toxic for human use. We were surprised to find that sontochin, i.e., 3-methyl-chloroquine, retains significant activity against chloroquine-resistant strains ofPlasmodium falciparum in vitro. We prepared derivatives of sontochin, “pharmachins,” with alkyl or aryl substituents at the 3 position and with alterations to the 4-position side chain to enhance activity against drug-resistant strains. Modified with an aryl substituent in the 3 position of the 7-chloro-quinoline ring, Pharmachin 203 (PH-203) exhibits low-nanomolar 50% inhibitory concentrations (IC50s) against drug-sensitive and multidrug-resistant strains andin vivoefficacy against patent infections ofPlasmodium yoeliiin mice that is superior to chloroquine. Our findings suggest that novel 3-position aryl pharmachin derivatives have the potential for use in treating drug resistant malaria.

Plasmodium yoelii nigeriensis (MDR)—Efficacy of Oral Pyronaridine against Multidrug-Resistant Malaria in Swiss Mice

2000 ◽  
Vol 94 (3) ◽  
pp. 190-193 ◽  
Author(s):  
Renu Tripathi ◽  
Aseem Umesh ◽  
Meenu Mishra ◽  
S.K. Puri ◽  
G.P. Dutta
Keyword(s):  
Multidrug Resistant ◽  
Plasmodium Yoelii ◽  
Swiss Mice

6-(4′-Aryloxy-phenyl)vinyl-1,2,4-trioxanes: A new series of orally active peroxides effective against multidrug-resistant Plasmodium yoelii in Swiss mice

2010 ◽  
Vol 20 (15) ◽  
pp. 4459-4463 ◽  
Author(s):  
Chandan Singh ◽  
Ved Prakash Verma ◽  
Niraj Krishna Naikade ◽  
Ajit Shankar Singh ◽  
Mohammad Hassam ◽  
...  
Keyword(s):  
Multidrug Resistant ◽  
Plasmodium Yoelii ◽  
Swiss Mice ◽  
Orally Active ◽  
Phenyl Vinyl

New orally active diphenylmethyl-based ester analogues of dihydroartemisinin: Synthesis and antimalarial assessment against multidrug-resistant Plasmodium yoelii nigeriensis in mice

2016 ◽  
Vol 26 (6) ◽  
pp. 1536-1541 ◽  
Author(s):  
Sandeep Chaudhary ◽  
Niraj K. Naikade ◽  
Mohit K. Tiwari ◽  
Lalit Yadav ◽  
Bharti Rajesh K. Shyamlal ◽  
...  
Keyword(s):  
Multidrug Resistant ◽  
Plasmodium Yoelii ◽  
Orally Active

Poly ICLC Enhances the Antimalarial Activity of Chloroquine Against Multidrug-Resistant Plasmodium yoelii nigeriensis in Mice

1997 ◽  
Vol 17 (7) ◽  
pp. 419-423 ◽  
Author(s):  
A AWASTHI ◽  
S. MEHROTRA ◽  
V. BHAKUNI ◽  
G.P. DUTTA ◽  
H.B. LEVY ◽  
...  
Keyword(s):  
Antimalarial Activity ◽  
Multidrug Resistant ◽  
Plasmodium Yoelii
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