1648863-90-4
基本信息
G5555
G 5555
8-(((2r,5r)-5-Amino-1,3-dioxan-2-yl)methyl)-6-(2-chloro-4-(6-methylpyridin-2-yl)phenyl)-2-(met
8-[(trans-5-Amino-1,3-dioxan-2-yl)methyl]-6-[2-chloro-4-(6-methyl-2-pyridinyl)phenyl]-2-(methylamino)-pyrido[2,3-d]pyrimidin-7(8H)-one
Pyrido[2,3-d]pyrimidin-7(8H)-one, 8-[(trans-5-amino-1,3-dioxan-2-yl)methyl]-6-[2-chloro-4-(6-methyl-2-pyridinyl)phenyl]-2-(methylamino)-
物理化学性质
| 沸点 | 684.6±65.0 °C(Predicted) |
| 密度 | 1.363±0.06 g/cm3(Predicted) |
| 储存条件 | -20°C储存 |
| 溶解度 | DMF: 25 mg/ml; DMSO: 25 mg/ml; DMSO:PBS(pH 7.2) (1:4): 0.20 mg/ml |
| 酸度系数(pKa) | 6.86±0.40(Predicted) |
| 形态 | 结晶固体 |
| 颜色 | White to light yellow |
安全数据
| 危险性符号(GHS) |  GHS07 |
| 警示词 | 警告 |
| 危险性描述 | H302-H315-H319-H335 |
| 防范说明 | P261-P305+P351+P338 |
常见问题列表
|
PAK1 3.7 nM (Ki) |
PAK2 11 nM (Ki) |
G-5555 is a potent PAK1 inhibitor with a K i of 3.7 nM. G-5555 shows excellent kinase selectivity and inhibits only eight out of the 235 kinases tested other than PAK1 with inhibition >70%: PAK2, PAK3, KHS1, Lck, MST3, MST4, SIK2, and YSK1. The IC 50 s of G-5555 against SIK2, PAK2, KHS1, MST4, YSK1, MST3 and Lck are 9, 11, 10, 20, 34, 43, 52 nM, respectively. In general, G-5555 demonstrates high selectivity for the group I PAKs. There is negligible activity for G-5555 against the hERG channel with IC 50 more than 10 μM in a patch clamp assay. G-5555 potently inhibits PAK2, with a K i of 11 nM. In an array of 23 breast cancer cell lines, G-5555 has significantly greater growth inhibitory activity in cell lines that are PAK-amplified compared to non-amplified lines.
G-5555 exhibits low blood clearance and an acceptable half-life. Good oral exposure (AUC = 30 μM•h) and high oral bioavailability (F = 80%) are achieved. In an H292 non-small cell lunger cancer (NSCLC) xenograft study in mice, G-5555 inhibits phosphorylation of the PAK1/2 downstream substrate mitogen-activated protein kinase 1 (MEK1) S298 and, when administered at an oral dose of 25 mg/kg b.i.d., imparts 60% tumor growth inhibition in this model13 and a PAK1 amplified breast cancer xenograft model, MDAMB-175.