Cholecystokinin-2/gastrin antagonists: 5-hydroxy-5-aryl-pyrrol-2-ones as anti-inflammatory analgesics for the treatment of inflammatory bowel disease
作者:E. Lattmann、J. Sattayasai、R. Narayanan、N. Ngoc、D. Burrell、P. N. Balaram、T. Palizdar、P. Lattmann
DOI:10.1039/c6md00707d
日期:——
Arylated 5-hydroxy-pyrrol-2-ones were prepared in 2 synthetic steps from mucochloric acid and optimised as CCK2-selective ligands using a range of assays.
Three new ureido-pyridazinonederivatives, which are structurally related to the known STAT3 inhibitor AVS-0288, were designed by taking into account the structure–activity relationships determined for several ureido-oxadiazole derivatives previously studied by our group. Their synthesis was first attempted through suitable 5-aminopyridazinone intermediates (6a and 6b), which molecular structures were
Cholecystokinin-1 receptor antagonists: 5-hydroxy-5-aryl-pyrrol-2-ones as anticancer agents
作者:E. Lattmann、S. T. Russell、C. H. Schwalbe、A. Shortt、P. N. Balaram、E. Theochari、M. Alharbi、R. Narayanan、P. Lattmann
DOI:10.1039/c6md00052e
日期:——
by using isolated tissue preparations. A series of isobutyl derivatives displayed unsurmountable CCK antagonistic properties and in vitro excellent inhibition of proliferation was obtained in cholecystokinin related cancer cell lines in the nanomolar range. Finally, using xenograft studies in nude mice, two selected pyrrolone derivatives, X = H and X = F a fluorinated analogue (PNB-028 ), showed a strong
通过两步合成从粘氯酸中衍生出一类新的5-芳基化5-羟基吡咯烷酮,并通过X射线分析进一步证实了其化学结构。使用放射性标记的结合测定法,有效的CCK 1个选择性配体进行鉴定(CCK 1:12 nm),而拮抗作用,通过使用分离的组织的制剂证实。一系列异丁基衍生物在体外具有不可克服的CCK拮抗作用在纳摩尔级的胆囊收缩素相关癌细胞系中获得了极好的增殖抑制。最后,通过在裸鼠中进行异种移植研究,选择了两种吡咯烷酮衍生物X = H和X = F a氟化类似物(PNB-028),在抗化学性结肠癌(MAC 16)和口服给药50mg / kg -1的人胰腺细胞系(MIAPACA)。