treatment of malignances dependent from FGF stimulation, including multiple myeloma (MM). The steroidal derivative NSC12 (compound 1) is a pan-FGF trap endowed with antitumor activity in vivo. Chemical modifications of compound 1 were explored to investigate structure-activity relationships, focusing on the role of the bis(trifluoromethyl)1,3-propanediol chain, the stereochemistry at C20 and functionalization
抑制 FGF/FGFR 信号传导是治疗依赖于 FGF 刺激的恶性肿瘤(包括多发性骨髓瘤 (MM))的一种很有前景的策略。甾体衍生物NSC12(化合物1 )是具有体内抗肿瘤活性的泛FGF陷阱。探索了化合物1 的化学修饰以研究构效关系,重点关注双(三氟甲基)1,3-丙二醇链的作用、C20 的立体化学和 C3 位置的功能化。我们的研究揭示了化合物25b,即化合物1的孕烷 3-酮 20 R衍生物作为一种有效的药剂,通过抑制 FGF 依赖性受体的激活和减缓体内 MM 的生长,在体外阻断 MM 细胞的增殖。重要的是,C3 处羟基的缺失阻止了与雌激素受体的结合,这可能与对化合物1观察到的抗肿瘤活性一致,导致特定的 FGF/FGFR 系统抑制剂,并进一步支持 FGFR 在 MM 抗癌治疗中的作用.
Synthesis, Structural Elucidation, and Biological Evaluation of NSC12, an Orally Available Fibroblast Growth Factor (FGF) Ligand Trap for the Treatment of FGF-Dependent Lung Tumors
promising antitumor activity. It was identified by virtual screening from a NCI small molecule library, but no data were available about its synthesis, stereochemistry, and physicochemical properties. We report here a synthetic route that allowed us to characterize and unambiguously identify the structure of the active compound by a combination of NMR spectroscopy and in silico conformational analysis