Preparation and biological evaluation of soluble tetrapeptide epoxyketone proteasome inhibitors was written by Lei, Meng;Zhang, Haoyang;Miao, Hang;Du, Xiao;Zhou, Hui;Wang, Jia;Wang, Xueyuan;Feng, Huayun;Shi, Jingmiao;Liu, Zhaogang;Shen, Jian;Zhu, Yongqiang. And the article was included in Bioorganic & Medicinal Chemistry in 2019.Synthetic Route of C16H24N2O4 This article mentions the following:
A series of novel tetrapeptidyl epoxyketone inhibitors of 20S proteasome was designed and synthesized. To fully understand the SAR, various groups at R1, R2, R3, R4 and R5 positions, including aromatic and aliphatic substituents were designed, synthesized and biol. assayed. Based on the enzymic results, seven compounds were selected to evaluate their cellular activities and soluble compound (I) showed strong potency against human multiple myeloma (MM) cell lines. Microsomal stability results indicated that compound I was more stable in mice, rat and human microsomes than marketed carfilzomib. The in vivo activities of this compound were evaluated with the xenograft mice models of MM cell lines ARH77 and RPMI-8226 with luciferase expression and the T/C value of the two models were 49.5% and 37.6%, resp. To evaluate the potential cardiovascular toxicity, inhibition of hERG ion channel in HEK293 cells by compound I and carfilzomib was carried out. The results indicated that I had no binding affinity for the hERG ion channel while carfilzomib could bind it with IC50 of 92.1 μM. In the experiment, the researchers used many compounds, for example, (S)-tert-Butyl (1-(methoxy(methyl)amino)-1-oxo-3-phenylpropan-2-yl)carbamate (cas: 87694-53-9Synthetic Route of C16H24N2O4).
(S)-tert-Butyl (1-(methoxy(methyl)amino)-1-oxo-3-phenylpropan-2-yl)carbamate (cas: 87694-53-9) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Synthetic Route of C16H24N2O4
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics