Synthesis and copper-dependent antimycoplasmal activity of 1-amino-3-(2-pyridyl)isoquinoline derivatives. 2. Amidines.
J Med Chem
; 32(2): 487-93, 1989 Feb.
Article
in En
| MEDLINE
| ID: mdl-2913309
ABSTRACT
In our search for new compounds with antimycoplasmal activity, a series of aromatic amidines derived from 1-amino-3-(2-pyridyl)isoquinoline (1) was synthesized. In the presence of 40 microM copper the most active compounds show growth inhibition of Mycoplasma gallisepticum in the nanomolar range. These compounds are 3 times as active as tylosin, an antimycoplasmal therapeutic agent that is used in veterinary practice. In the presence of copper, amidines derived from 1 are 2-3 times more active than the corresponding amides. Furthermore it was established that for these compounds too, the presence of a 2,2'-bipyridyl moiety is a necessary prerequisite for antimycoplasmal activity. As for the amides, antimycoplasmal activity of amidines derived from 1 is dependent on the hydrophobic fragmental value of the aromatic nucleus of the amidine moiety. A quantitative structure-activity relationship established the optimal hydrophobic fragmental value of this part of the molecule to be zero.
Search on Google
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Copper
/
Amidines
/
Anti-Bacterial Agents
/
Mycoplasma
Language:
En
Journal:
J Med Chem
Journal subject:
QUIMICA
Year:
1989
Document type:
Article
Affiliation country:
Netherlands