In 2022,Cao, Yu; Tu, Yutong; Fu, Liping; Yu, Qian; Gao, Lixin; Zhang, Mengmeng; Zeng, Linghui; Zhang, Chong; Shao, Jiaan; Zhu, Huajian; Zhou, Yubo; Li, Jia; Zhang, Jiankang published an article in European Journal of Medicinal Chemistry. The title of the article was 《Metabolism guided optimization of peptidomimetics as non-covalent proteasome inhibitors for cancer treatment》.Name: tert-Butyl 4-aminopiperidine-1-carboxylate The author mentioned the following in the article:
A series of novel non-covalent peptidomimetic proteasome inhibitors possessing bulky group at the C-terminus and N-alkylation at the N-terminus were designed with the aim to increase metabolic stabilities in vivo. All the target compounds were screened for their inhibitory activities against human 20S proteasome, and most analogs exhibited notable potency compared with the pos. control bortezomib with IC50 values lower than 10 nM, which also displayed potent cytotoxic activities against multiple myeloma (MM) cell lines and human acute myeloid leukemia (AML) cells. Furthermore, whole blood stability and in vivo proteasome inhibitory activity experiments of selected compounds were conducted for further evaluation, and the representative compound 43 (IC50 = 8.39 ± 2.32 nM, RPMI-8226: IC50 = 15.290 ± 2.281 nM, MM-1S: IC50 = 9.067 ± 3.103 nM, MV-4-11: IC50 = 2.464 ± 0.713 nM) revealed a half-life extension of greater than 9-fold (329.21 min VS 36.79 min) and potent proteasome inhibitory activity in vivo. The pos. results confirmed the reliability of the metabolism guided optimization strategy, and the analogs discovered are potential leads for exploring new anti-MM drugs. In the part of experimental materials, we found many familiar compounds, such as tert-Butyl 4-aminopiperidine-1-carboxylate(cas: 87120-72-7Name: tert-Butyl 4-aminopiperidine-1-carboxylate)
tert-Butyl 4-aminopiperidine-1-carboxylate(cas: 87120-72-7) belongs to anime. Halogenation, in which one or more hydrogen atoms of an amine is replaced by a halogen atom, occurs with chlorine, bromine, and iodine, as well as with some other reagents, notably hypochlorous acid (HClO). With primary amines the reaction proceeds in two stages, producing N-chloro- and N,N-dichloro-amines, RNHCl and RNCl2, respectively. With tertiary amines, an alkyl group may be displaced by a halogen.Name: tert-Butyl 4-aminopiperidine-1-carboxylate
Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem