Abstract:
:The preparation and plasma lipid altering characteristics of a series of 4H-3,1-benzoxazin-4-ones are described. Hypocholesterolemic, hypotriglyceridemic, and high-density-lipoprotein elevating properties are found for derivatives bearing a 4-(1,1-dimethylethyl)phenyl group at the 2-position, and this activity is displayed in both hypercholesterolemic and in normolipidemic rats when the ring system is substituted at position 6 with hydrogen, methyl, chloro, or iodo groups, and is optimal when the 6-position is substituted by a bromine atom. Evidence is presented suggesting that a metabolite or degradation product is responsible for the changes in lipoprotein concentration observed with active molecules of this type. Synthesis of anticipated degradation products of the active molecules gave products displaying the expected in vivo activity, but no improvement in the narrow therapeutic margin of the best compound, 6-bromo-2-[4-(1,1-dimethylethyl)phenyl]-4H-3,1-benzoxazin-4-one, was obtained.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Fenton G,Newton CG,Wyman BM,Bagge P,Dron DI,Riddell D,Jones GDdoi
10.1021/jm00121a047subject
Has Abstractpub_date
1989-01-01 00:00:00pages
265-72issue
1eissn
0022-2623issn
1520-4804journal_volume
32pub_type
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