Further bisabolenes and dammarane triterpenes of Commiphora kua resin.
From the resins of Commiphora kua a novel bisabolene; 6-hydroxy-2-methyl-5-(5'-hydroxy-1'(R),5'-dimethylhex-3'-enyl)-phenol together with two new dammarane triterpenes, 3beta,16beta,20(S),25-tetrahydroxydammar-23-ene and 3beta-acetoxy-16beta,20(S),25-trihydroxydammar-23-ene, have been isolated. In addition, being reported are known compounds identified as 2-methyl-5-(4'(S)-hydroxy-1'(R),5'-dimethylhex-5'-enyl)-phenol, 2-acetoxyfuranodienone, 2-methoxyfuranodienone, 3beta,16beta,20(R)-trihydroxydammar-24-ene and its acetate derivative, 3beta-acetoxy-16beta,20(R)-dihydroxydammar-24-ene, and beta-amyrin and its acetate derivative. 2-Methyl-5-(4'(S)-hydroxy-1'(R),5'-dimethylhex-5'-enyl)-phenol displayed fungicidal activity against Cladosporium cucumernum on TLC assay.
Chemistry Department, Nairobi University, Kenya. kamanguro@yahoo.com
Lawrence Onyango Arot
LO
Manguro
Ivar
I
Ugi
Peter
P
Lemmen
D000935:Antifungal Agents / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology; D002963:Cladosporium / Q000187:drug effects / Q000254:growth & development; D029744:Commiphora / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008826:Microbial Sensitivity Tests; D012116:Resins, Plant / Q000737:chemistry; D012717:Sesquiterpenes / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology*; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology*; D000097669:Dammaranes
D000935:Antifungal Agents; D012116:Resins, Plant; D012717:Sesquiterpenes; D014315:Triterpenes; D000097669:Dammaranes; C479940:3beta,16beta,20(S),25-tetrahydroxydammar-23-ene; C479939:3beta-acetoxy-16beta,20(S),25-trihydroxydammar-23-ene; C479941:6-hydroxy-2-methyl-5-(5'-hydroxy-1'(R),5'-dimethylhex-3'-enyl)-phenol