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Avermectin resistance in Cooperia pectinata in cattle in Argentina
(British Veterinary Assoc, 2001-07)
In central Argentina, calves naturally infected with Cooperia pectinata were treated with ivermectin and doramectin. These drugs failed to reduce epg after treatment
Insight into Phosphine Effects on the Homogeneous Hydrogenation of Avermectins to Ivermectin Catalyzed by In-Situ Formed Rhodium Complexes
(Springer, 2008-12)
A kinetic study of the homogeneous catalytic hydrogenation of avermectins is reported for a series of isosteric p-substituted arylphosphines as ligands. The activity of the rhodium complexes formed in situ from [RhCl(COD)]2 ...
Kinetics of the homogeneous hydrogenation of avermectins catalyzed by RhCl(Ph3P)3 complexes
(Elsevier Science, 2005-12)
The kinetics of the hydrogenation of avermectins B1a and B1b catalyzed by RhCl(Ph3P)3 complexes was studied in a temperature range of 298–328 K at 275.7 kN m2, using catalyst loading in the range of 0.75–7.25 wt.% with ...
A Comparison of Homogeneous and Biphasic Hydrogenation Systems of Macrocyclic Lacton with In Situ Formed Rhodium Complexes
(Springer, 2008-12)
Homogeneous and biphasic hydrogenation of avermectins catalyzed by rhodium complexes in situ formed from [RhCl(COD)]2 and triphenylphosphine or sulphonated arylphosphines, respectively, was studied under mild reaction ...