A pentacene intermediate via formal intramolecular photoredox of a 6,13-pentacenequinone in aqueous solution
作者:Yunyan Hou、Peter Wan
DOI:10.1139/v07-117
日期:2007.12.1
photolysis of 4 in acidic aqueous solution (pH < 3) resulted in a clean intramolecular photoredox reaction, via an enol intermediate, to give 10 (green compound; Φ ~ 0.2 at pH 1), which was too reactive for isolation or trapping by standard ArOH trapping agents such as aceticanhydride. These reactions may be viewed as a one-way photochemical intramolecular “redox switch” from quinone to hydroquinone
Annulins A, B, C or analogs as indoleamine 2,3-dioxygenase (IDO) inhibitors for treatment of cancer
申请人:THE UNIVERSITY OF BRITISH COLUMBIA
公开号:EP2130826A1
公开(公告)日:2009-12-09
Inhibitors of indoleamine 2,3-dioxygenase (IDO) are provided as are pharmaceutical compositions containing such inhibitors as well as the use of such inhibitors and compositions for the treatment of a condition in a mammalian subject characterized by pathology of the IDO-mediated tryptophan metabolic pathway. Such conditions may involve suppression of T-cell mediated immune response or may directly result from depletion of tryptophan or accumulation of a product of tryptophan degradation. Specific disease conditions include cancer. IDO inhibitors of this invention are homologs of annulin A, annulin B or annulin C.
本研究提供了吲哚胺 2,3-二氧化酶(IDO)的抑制剂以及含有此类抑制剂的药物组合物,还提供了使用此类抑制剂和组合物治疗哺乳动物体内以 IDO 介导的色氨酸代谢途径病理学为特征的疾病的方法。此类病症可能涉及抑制 T 细胞介导的免疫反应,也可能直接导致色氨酸耗竭或色氨酸降解产物的积累。具体的疾病情况包括癌症。本发明的 IDO 抑制剂是鹅膏素 A、鹅膏素 B 或鹅膏素 C 的同源物。
Indoleamine 2,3-Dioxygenase (IDO) Inhibitors
申请人:ANDERSEN Raymond J.
公开号:US20090042868A1
公开(公告)日:2009-02-12
Inhibitors of indoleamine 2,3-dioxygenase (IDO) are provided as are pharmaceutical compositions containing such inhibitors as well as the use of such inhibitors and compositions for the treatment of a condition in a mammalian subject characterized by pathology of the IDO-mediated tryptophan metabolic pathway. Such conditions may involve suppression of T-cell mediated immune response or may directly result from depletion of tryptophan or accumulation of a product of tryptophan degradation. Specific disease conditions include cataracts, age-related yellowing in the eye, neurodegenerative disorders, mood disorders, cancer and various bacterial/viral infections. IDO inhibitors of this invention are substituted naphthalene and anthracene diones. Novel compounds of this invention include the following taurine-substituted naphthaquinone structure.
US7799776B2
申请人:——
公开号:US7799776B2
公开(公告)日:2010-09-21
Synthesis and in vitro antitumor activity of substituted anthracene-1,4-diones
作者:Duy H. Hua、Kaiyan Lou、Josh Havens、Elisabeth M. Perchellet、Yang Wang、Jean-Pierre Perchellet、Takeo Iwamoto
DOI:10.1016/j.tet.2004.09.026
日期:2004.11
of the representative compound 10 was verified at the National Cancer Institute in studies on the 60-human tumor cell line panel in the in vitro antitumor screening. A wide spectrum of tumor cells are sensitive to 10 inhibition, and concentrations required to inhibit tumor cell growth by 50% (GI50) at 48 h are <10 nM in HL-60 and MOLT-4 and 37.1 nM in SR leukemia. Preliminary studies suggest that the