《Efficacy and Tolerability of Pyrazolo[1,5-a]pyrimidine RET Kinase Inhibitors for the Treatment of Lung Adenocarcinoma》 was written by Mathison, Casey J. N.; Chianelli, Donatella; Rucker, Paul V.; Nelson, John; Roland, Jason; Huang, Zhihong; Yang, Yang; Jiang, Jiqing; Xie, Yun Feng; Epple, Robert; Bursulaya, Badry; Lee, Christian; Gao, Mu-Yun; Shaffer, Jennifer; Briones, Sergio; Sarkisova, Yelena; Galkin, Anna; Li, Lintong; Li, Nanxin; Li, Chun; Hua, Su; Kasibhatla, Shailaja; Kinyamu-Akunda, Jacqueline; Kikkawa, Rie; Molteni, Valentina; Tellew, John E.. Safety of tert-Butyl 4-hydroxypiperidine-1-carboxylate And the article was included in ACS Medicinal Chemistry Letters in 2020. The article conveys some information:
RET (REarranged during Transfection) kinase gain-of-function aberrancies have been identified as potential oncogenic drivers in lung adenocarcinoma, along with several other cancer types, prompting the discovery and assessment of selective inhibitors. Internal mining and anal. of relevant kinase data informed the decision to investigate a pyrazolo[1,5-a]pyrimidine scaffold, where subsequent optimization led to the identification of compound WF-47-JS03 (1), a potent RET kinase inhibitor with >500-fold selectivity against KDR (Kinase insert Domain Receptor) in cellular assays. In subsequent mouse in vivo studies, compound 1 demonstrated effective brain penetration and was found to induce strong regression of RET-driven tumor xenografts at a well-tolerated dose (10 mg/kg, po, qd). Higher doses of 1, however, were poorly tolerated in mice, similar to other pyrazolo[1,5-a]pyrimidine compounds at or near the efficacious dose, and indicative of the narrow therapeutic windows seen with this scaffold. The experimental part of the paper was very detailed, including the reaction process of tert-Butyl 4-hydroxypiperidine-1-carboxylate(cas: 109384-19-2Safety of tert-Butyl 4-hydroxypiperidine-1-carboxylate)
tert-Butyl 4-hydroxypiperidine-1-carboxylate(cas:109384-19-2) is a 4-hydroxypyridine with a boc protecting group used in the preparation of neurologically active agents and other pharmaceutical compounds.Safety of tert-Butyl 4-hydroxypiperidine-1-carboxylate
Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem