Anthelmintic macrolactams from Nonomuraea turkmeniaca MA7364.
J Nat Prod
; 70(8): 1371-3, 2007 Aug.
Article
in En
| MEDLINE
| ID: mdl-17636954
ABSTRACT
Two new macrolactams, 6-desmethyl-N-methylfluvirucin A1 (1) and N-methylfluvirucin A1 (2), have been isolated from the acetone extract of Nonomuraea turkmeniaca MA7364. These compounds were isolated by bioassay-guided fractionation as part of our search for new anthelmintics. The structures of these compounds were elucidated by comparison of their NMR and MS data to those of previously reported fluvirucins and confirmed by 2D NMR. Compound 1 exhibited in vitro activity (EC(90) 15 +/- 5 microg/mL) against Haemonchus contortus larvae, whereas compound 2, while a bit less active in vitro (EC(90) 29 +/- 8 microg/mL), showed modest in vivo activity against a surrogate organism, Heligmosomoides polygyrus in mice, at 50 mg/kg.
Search on Google
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Plants, Medicinal
/
Actinomycetales
/
Haemonchus
/
Lactams
/
Anthelmintics
Limits:
Animals
Country/Region as subject:
Mexico
Language:
En
Journal:
J Nat Prod
Year:
2007
Document type:
Article
Affiliation country:
United States