New enone derivatives of oleanolic acid and ursolic acid as inhibitors of nitric oxide production in mouse macrophages
作者:Tadashi Honda、Heather J. Finlay、Gordon W. Gribble、Nanjoo Suh、Michael B. Sporn
DOI:10.1016/s0960-894x(97)00279-5
日期:1997.7
New derivatives of 3-oxoolean-1-en-28 oic acid and 3-oxours-1-en-28-oic acid were synthesized. Nine of them showed significant inhibitory activity against interferon-gamma-induced nitric oxide production in mouse macrophages when assayed at the 1 mu M level. 3,12-Dioxoolean-1,9-dien-28-oic acid (3) had the highest activity (IC50, 0.9 mu M). (C) 1997 Elsevier Science Ltd.
Synthetic Oleanane and Ursane Triterpenoids with Modified Rings A and C: A Series of Highly Active Inhibitors of Nitric Oxide Production in Mouse Macrophages
作者:Tadashi Honda、BarbieAnn V. Rounds、Lothar Bore、Heather J. Finlay、Frank G. Favaloro,、Nanjoo Suh、Yongping Wang、Michael B. Sporn、Gordon W. Gribble
DOI:10.1021/jm0002230
日期:2000.11.1
combination of modified rings A and C increases the potency by about 10 000 times compared with the lead compound, 3-oxooleana-1,12-dien-28-oic acid (8) (IC(50) = 1 microM level). The selected oleananetriterpenoid, CDDO (26), was found to be a potent, multifunctional agent in various in vitro assays and to show antiinflammatory activity against thioglycollate-interferon-gamma-induced mouse peritonitis