title: Amino acid, dipeptide and pseudodipeptide conjugates of ring-substituted 8-aminoquinolines: synthesis and evaluation of anti-infective, β-haematin inhibition and cytotoxic activities.
abstract: Three new series of 8-aminoquinolines with modifications in the side-chain by conjugation with amino acids, dipeptides and pseudodipeptides have been synthesized. The synthesized compounds were tested for in vitro antimalarial activity against chloroquine-sensitive and chloroquine-resistant Plasmodium falciparum strains, in vitro cytotoxicity in mammalian kidney cells (Vero), in vitro antileishmanial activity against Leishmania donovani, in vitro antimicrobial activity and in vitro inhibition of β-haematin formation. The promising compounds were also evaluated for in vivo blood-schizontocidal antimalarial activity against Plasmodium berghei infected mice. The analogues 55 and 101 produced highest antimalarial activities, in vitro. Analogues 52 and 59 exhibited promising antileishmanial and broad spectrum of antifungal activities, respectively.
authors.affiliation: Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Sector 67, S. A. S. Nagar, Punjab 160 062, India.
authors.forename: Kirandeep
authors.initials: K
authors.lastname: Kaur
authors.forename: Meenakshi
authors.initials: M
authors.lastname: Jain
authors.forename: Shabana I
authors.initials: SI
authors.lastname: Khan
authors.forename: Melissa R
authors.initials: MR
authors.lastname: Jacob
authors.forename: Babu L
authors.initials: BL
authors.lastname: Tekwani
authors.forename: Savita
authors.initials: S
authors.lastname: Singh
authors.forename: Prati Pal
authors.initials: PP
authors.lastname: Singh
authors.forename: Rahul
authors.initials: R
authors.lastname: Jain
mesh_terms: D000596:Amino Acids / Q000737:chemistry*; D000634:Aminoquinolines / Q000138:chemical synthesis / Q000737:chemistry* / Q000494:pharmacology* / Q000633:toxicity; D000818:Animals; D000890:Anti-Infective Agents / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology / Q000633:toxicity; D060326:Chemistry Techniques, Synthetic; D002522:Chlorocebus aethiops; D004151:Dipeptides / Q000737:chemistry*; D005658:Fungi / Q000187:drug effects; D006420:Hemeproteins / Q000037:antagonists & inhibitors* / Q000378:metabolism; D007893:Leishmania donovani / Q000187:drug effects; D051379:Mice; D057786:Peptidomimetics / Q000737:chemistry*; D010963:Plasmodium falciparum / Q000187:drug effects; D014709:Vero Cells
chemical_list: D000596:Amino Acids; D000634:Aminoquinolines; D000890:Anti-Infective Agents; D004151:Dipeptides; D006420:Hemeproteins; D057786:Peptidomimetics; C020753:hemozoin; C080436:8-aminoquinoline