title: HIV-1 inhibitory compounds from Calophyllum brasiliense leaves.
abstract: The hexane, acetone and methanol extracts of Calophyllum brasiliense leaves were fractionated following a three bioassay guide: high HIV-1 RT inhibition, low cytotoxicity on MT2 cells and high inhibition of HIV-1 IIIb/LAV replication. This led to the isolation of three anti HIV-1 dipyranocoumarins: calanolides A and B and soulattrolide. In contrast, other isolated compounds such as apetalic acid, isoapetalic acid, a structural isomer of isoapetalic acid, friedelin, canophyllol and amentoflavone were devoid of HIV-1 RT inhibitory activity. Calanolide C was also obtained as a natural product and showed moderate inhibitory properties.
authors.affiliation: Department of Natural Products, Institute of Chemistry, National University of Mexico, Ciudad Universitaria, 04510, Mexico D. F., Mexico.
authors.forename: Maira
authors.initials: M
authors.lastname: Huerta-Reyes
authors.forename: Maria Del Carmen
authors.initials: Mdel C
authors.lastname: Basualdo
authors.forename: Fumiko
authors.initials: F
authors.lastname: Abe
authors.forename: Manuel
authors.initials: M
authors.lastname: Jimenez-Estrada
authors.forename: Carmen
authors.initials: C
authors.lastname: Soler
authors.forename: Ricardo
authors.initials: R
authors.lastname: Reyes-Chilpa
mesh_terms: D019380:Anti-HIV Agents / Q000302:isolation & purification* / Q000494:pharmacology; D029759:Calophyllum / Q000737:chemistry*; D002460:Cell Line; D054303:HIV Reverse Transcriptase / Q000037:antagonists & inhibitors; D015497:HIV-1 / Q000187:drug effects*; D006801:Humans; D008214:Lymphocytes / Q000187:drug effects; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology; D018515:Plant Leaves / Q000737:chemistry*; D018894:Reverse Transcriptase Inhibitors / Q000302:isolation & purification / Q000494:pharmacology; D014779:Virus Replication / Q000187:drug effects
chemical_list: D019380:Anti-HIV Agents; D010936:Plant Extracts; D018894:Reverse Transcriptase Inhibitors; D054303:HIV Reverse Transcriptase