532-54-7Relevant articles and documents
Discovery of Hydroxyamidine Derivatives as Highly Potent, Selective Indoleamine-2,3-dioxygenase 1 Inhibitors
Jin, Fangfang,Hu, Qiyue,Fei, Hongbo,Lv, Hejun,Wang, Shenglan,Gui, Bin,Zhang, Junzhen,Tu, Wangyang,Zhang, Yun,Zhang, Lei,Wan, Hong,Zhang, Limin,Hu, Bin,Yang, Fanglong,Bai, Chang,He, Feng,Zhang, Lianshan,Tao, Weikang
supporting information, p. 195 - 201 (2021/02/06)
In this study, a series of novel hydroxyamidine derivatives were identified as potent and selective IDO1 inhibitors by structure-based drug design. Among them, compounds 13-15 and 18 exhibited favorable enzymatic and cellular activities. Compound 18 showed improved bioavailability in mouse, rat, and dog (F% = 44%, 58.8%, 102.1%, respectively). With reasonable in vivo pharmacokinetic properties, compound 18 was further evaluated in a transgenic MC38 xenograft mouse model. The combination of compound 18 with PD-1 monoclonal antibody showed a synergistic antitumor effect. These data indicated that compound 18 as a potential cancer immunotherapy agent should warrant further investigation.
Site-selective conversion of azido groups at carbonyl α-positions into oxime groups leading triazide to a triple click conjugation scaffold
Yokoi, Taiki,Ueda, Tomomi,Tanimoto, Hiroki,Morimoto, Tsumoru,Kakiuchi, Kiyomi
supporting information, p. 1891 - 1894 (2019/05/02)
This paper reports the selective conversion of alkyl azido groups at the carbonyl α-position into oximes through β-elimination of dinitrogen, followed by transoximation. With this method and diazo conversion, a triazido molecule was transformed into a triple click conjugation scaffold allowing one-pot four-component coupling.
Single-Step Modular Synthesis of Unsaturated Morpholine N-Oxides and Their Cycloaddition Reactions
Son, Jongwoo,Kim, Ki Hwan,Mo, Dong-Liang,Wink, Donald J.,Anderson, Laura L.
supporting information, p. 3059 - 3063 (2017/03/14)
A single-flask procedure for the generation of α-keto-N-alkenylnitrones through a Chan–Lam coupling and subsequent spontaneous 6π electrocyclization of these intermediates for the synthesis of 2H-1,4-oxazine N-oxides has been developed for a variety of α-ketooximes and alkenylboronic acids. This transformation provides a new approach to C-substituted unsaturated morpholine derivatives that are poised to undergo further functionalization for the preparation of a diverse array of novel heterocyclic structures. The scope of the new method for the synthesis of 2H-1,4-oxazine N-oxides is discussed, in addition to initial studies describing the cycloaddition reactivity of these new heterocyclic intermediates.
