287478-47-1Relevant articles and documents
INTERLEUKIN-1 AND TUMOR NECROSIS FACTOR-A MODULATORS; SYNTHESES OF SUCH MODULATORS AND METHODS OF USING SUCH MODULATORS
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Page/Page column 66; 132-133; Sheet 12/69; 18/69, (2010/11/25)
Compounds are disclosed that have the chemical structure of Formula (II), (IIA) and (IIB) and their prodrug esters and acid-addition salts, and that are useful as Interleukin-1 and Tumor Necrosis Factor-a modulators, and thus are useful in the treatment of various diseases, wherein the R groups are defined in the claims.
Enantioselective synthesis of the antiinflammatory agent (-)-acanthoic acid
Ling,Chowdhury,Kramer,Vong,Palladino,Theodorakis
, p. 8843 - 8853 (2007/10/03)
An enantioselective synthesis of the potent antiinflammatory agent (-)-acanthoic acid (1) is described. The successful strategy departs from (-)-Wieland-Miescher ketone (10), which is readily available in both enantiomeric forms and constitutes the starting point toward a fully functionalized AB ring system of 1. Conditions were developed for a regioselective double alkylation at the C4 center of the A ring, which produced compound 32 as a single stereoisomer. Construction of the C ring of 1 was accomplished via a Diels-Alder reaction between sulfur-containing diene 43 and methacrolein (36), which after desulfurization and further functionalization yielded synthetic acanthoic acid. The described synthesis confirms the proposed stereochemistry of the natural product and represents a fully stereocontrolled entry into an underexplored class of biologically active diterpenes.