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PubMed · 120168

Animal models for an integrated approach to the pharmacologic control of atherosclerosis.

C E Day·W A Phillips·P E Schurr
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Abstract

A system of animal models potentially useful for the discovery and evaluation of new effective antiatherosclerotic agents is described. The models consist of a series of lipoprotein and atherosclerosis assays in rats, SEA Japanese quail and cynomolgus monkeys. SEA quail are particularly useful for detecting compounds that inhibit arterial cholesterol deposition. The use of this integrated system of models is illustrated with data on clofibrate, adamantyloxyaniline (a hypobetalipoproteinemic agent), and o,p'-DDD. Male SEA quail appear to be a quite satisfactory model for testing the effects of large numbers of compounds on atherosclerosis and are available in limited numbers to all qualified investigators in the field of atherosclerosis research for evaluation in their laboratories.

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AdamantaneAniline CompoundsAnimalsArteriosclerosisClofibrateCoturnixDisease Models, AnimalDrug Evaluation, PreclinicalFemaleHaplorhiniHumansHypolipidemic AgentsMacaca fascicularisMaleMitotanePiperidinesRatsTerminology as TopicJournal Article

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C E Day, W A Phillips, P E Schurr. 1979. Animal models for an integrated approach to the pharmacologic control of atherosclerosis.. https://pubmed.ncbi.nlm.nih.gov/120168/

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PubMed1979

Hypobetalipoproteinemic agents. 2. Compounds related to 4-(1-adamantyloxy)aniline.

While the previously used displacement reaction of sodim 1-adamantyl oxide on 4-fluoronitrobenzene was applicable to the preparation of 4-(1-adamantyloxy)aniline and several related compounds, certain derivatives were not easily accessible by this route. Thus the recently reported ortho alkylation of anilines and the dicyclohexylcarbodiimide-promoted coupling of 1-adamantanol with phenols were useful in the preparation of aromatic-substituted derivatives. Furthermore, addition of phenylmagnesium bromide to 1-cyanoadamantane provided entry to the 4-(1-adamantylmethyl)aniline series. 4-(1-Adamantyloxy)aniline (3) is herein reported to be a more potent hypobetalipoproteinemic agent than the previously reported bicyclooctyloxy analogue. Replacement of the oxygen atom of 3 with sulfur (74) or methylene (62), but not nitrogen (71), results in active compounds. In the oxygen series derived from 3, the widest scope of substitution on nitrogen resulting in activity is found. The N-ethoxycarbonyl (5), acetyl (6), methyl (12), ethyl (13), N-methyl-N-(2-hydroxyethyl) (19), N-methyl-N-formyl (22), N,N-dimethyl (26), pyrrolidine (14), and piperidine (15) derivatives are active. Aromatic ring substitution also provided the active 3-chloro (44b), 2-fluoro (41b, 42, and 43), and 2-methylthiomethyl (48) compounds. Thus these active compounds are identified for further development as hypobetalipoproteinemic agents.

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