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    • 3. 发明申请
    • GAMMA-AA-PEPTIDE STAT3/DNA INHIBITORS AND METHODS OF USE
    • GAMMA-AA-PEPTIDE STAT3 / DNA抑制剂及其使用方法
    • WO2015164870A1
    • 2015-10-29
    • PCT/US2015/027801
    • 2015-04-27
    • H. LEE MOFFITT CANCER CENTER AND RESEARCH INSTITUTE, INC.UNIVERSITY OF SOUTH FLORIDASEBTI, Said, M.CAI, Jianfeng
    • SEBTI, Said, M.CAI, Jianfeng
    • A61K31/198
    • C07K7/02C07C237/22
    • STAT3 hyperphosphorylation, dimerization and DNA binding are required for its ability to contribute to malignant transformation. As such, STAT3 has been recognized as a promising target for cancer therapy. Although a number of inhibitors of STAT3-STAT3 dimerization have been reported, molecular ligands that prevent interactions between STAT3 and DNA are very rare. The Υ-AApeptide-based one-bead-one-compound (OBOC) combinatorial library was used, and identified Υ-AApeptides that can selectively inhibit STAT3/DNA interaction and suppress the expression levels of STAT3 target genes in intact cells. The results not only validate Υ-AApeptides as novel inhibitors of STAT3 signaling pathway, but also demonstrate that in addition to the SH2 domain, the DNA binding domain of STAT3 is targetable for the development of new generation of anti-cancer therapeutics. This also validates the approach of OBOC combinatorial library for the identification of ligands targeting traditionally recognized "undruggable targets".
    • 需要STAT3高磷酸化,二聚化和DNA结合才能促成恶性转化。 因此,STAT3已经被认为是癌症治疗的有希望的靶标。 尽管已经报道了许多STAT3-STAT3二聚化抑制剂,但是阻止STAT3和DNA之间相互作用的分子配体是非常罕见的。 使用基于Υ-AA肽的单珠一化合物(OBOC)组合文库,并鉴定出可以选择性抑制STAT3 / DNA相互作用并抑制完整细胞中STAT3靶基因表达水平的Υ-AA肽。 结果不仅验证了Υ-AA肽作为STAT3信号通路的新型抑制剂,而且还证明除SH2结构域外,STAT3的DNA结合结构域可用于开发新一代抗癌治疗剂。 这也验证了OBOC组合库用于识别针对传统认可的“不可抵赖目标”的配体的方法。
    • 6. 发明申请
    • PROTEASOME INHIBITORS FOR SELECTIVELY INDUCING APOPTOSIS IN CANCER CELLS
    • 蛋白酶体抑制剂选择性诱导癌细胞凋亡的研究
    • WO2010005534A2
    • 2010-01-14
    • PCT/US2009/003926
    • 2009-06-30
    • H. LEE MOFFITT CANCER CENTER AND RESEARCH INSTITUTE, INC.UNIVERSITY OF SOUTH FLORIDALAWRENCE, HarshaniGE, YiyuSEBTI, Said, M.GUIDA, Wayne
    • LAWRENCE, HarshaniGE, YiyuSEBTI, Said, M.GUIDA, Wayne
    • A61K31/38A61P35/00A61K31/255A61K31/192
    • C07C323/52C07C311/20C07C311/43C07C323/62C07C2602/10C07D213/76C07D231/42C07D239/69C07D261/16C07D277/52C07D285/135C07D333/34C07D409/12
    • The subject invention concerns compounds having activity as inhibitors of proteasomes and methods of using the subject compounds. In one embodiment, a compound of the invention has the chemical structure shown in Formula (I), wherein R 1 is an organic cyclic ring structure bonded to a sulfonamide structure; R 2 is H, halogen, alkyl, -NR 6 R 7 , or heteroalkyl; R 3 is H, halogen, -OH, -O-alkyl, alkyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, -NO 2 , -NH 2 or substituted amines; R 4 is H, alkyl, heteroalkyl, aryl, or heteroaryl, any of which can be optionally substituted with one or more of -NO 2 , alkyl, heteroalkyl, aryl, or heteroaryl, or halogen; R 5 is H, -OH, halogen, alkyl, aryl, heteroaryl, cycloalkyl, heterocycloalkyl, -O-alkyl, -O- aryl, heteroalkyl, -NO 2 , -NH 2 , or substituted amine; and R 6 and R 7 are independently H, O, alkyl, aryl, heterocycloalkyl, or heteroaryl, or together can form a heterocycloalkyl or a heteroaryl, any of which can be optionally substituted with one or more of -NO 2 , alkyl, heteroalkyl, aryl, or halogen; or a pharmaceutically acceptable salt or hydrate thereof. In another embodiment, a compound of the invention has the chemical structure shown in Formula (II), wherein Q, W, X, Y, Z are each independently carbon, oxygen, or nitrogen; R 1 is H, or X 1 R 8 ; R 2 is heteroalkyl, which can be optionally substituted with one or more of -OH, halogen, -C(O)OR 4 , alkyl, heteroalkyl, heterocycloalkyl, or heteroaryl; R 3 is heterocycloalkyl, aryl, heteroaryl, any of which can be optionally substituted with one or more of a halogen or -OH; and R 4 is H or alkyl; R 5 is halogen, alkyl or nitro; R 6 is nitro, X 2 R 9 or a halogen; R 7 is H or alkyl; R 8 is H, alkyl, aryl, CH 2 -alkyl-aryl, -alkyl-C(O)OH, or alkyl-tetrazole (aromatic and aliphatic heterocyclic groups); R 9 is H or alkyl; X 1 is oxygen, nitrogen, or sulfur; X 2 is oxygen, nitrogen, or sulfur; or a pharmaceutically acceptable salt or hydrate thereof.
    • 本发明涉及具有作为蛋白酶体抑制剂活性的化合物和使用该主题化合物的方法。 在一个实施方案中,本发明的化合物具有式(I)所示的化学结构,其中R 1是与磺酰胺结构键合的有机环状环结构; R 2是H,卤素,烷基,-NR 6 R 7或杂烷基; R 3是H,卤素,-OH,-O-烷基,烷基,环烷基,杂环烷基,芳基,杂芳基,-NO 2,-NH 2, 或取代的胺; R 4是H,烷基,杂烷基,芳基或杂芳基,它们中的任何一个可以任选地被一个或多个-NO 2,烷基,杂烷基,芳基, 或杂芳基,或卤素; R 5是H,-OH,卤素,烷基,芳基,杂芳基,环烷基,杂环烷基,-O-烷基,-O-芳基,杂烷基,-NO 2, -NH 2 2或取代的胺; 且R 6和R 7独立地为H,O,烷基,芳基,杂环烷基或杂芳基,或者可一起形成杂环烷基或杂芳基,它们中的任何一个可以是 任选地被一个或多个-NO 2,烷基,杂烷基,芳基或卤素取代; 或其药学上可接受的盐或水合物。 在另一个实施方案中,本发明的化合物具有式(II)所示的化学结构,其中Q,W,X,Y,Z各自独立地为碳,氧或氮; R 1为H或X 1 R 8; R 2是杂烷基,其可以任选地被一个或多个-OH,卤素,-C(O)OR 4,烷基,杂烷基,杂环烷基或杂芳基取代 ; R 3是杂环烷基,芳基,杂芳基,它们中的任何一个可以任选地被一个或多个卤素或-OH取代; 且R 4是H或烷基; R 5是卤素,烷基或硝基; R 6是硝基,X 2 R 9或卤素; R 7是H或烷基; R 8是H,烷基,芳基,CH 2 - 烷基 - 芳基, - 烷基-C(O)OH或烷基 - 四唑(芳族和脂族杂环基团) ; R 9是H或烷基; X 1是氧,氮或硫; X 2是氧,氮或硫; 或其药学上可接受的盐或水合物。