Data for the synthesis of new 4-aryloxy-N-arylanilines as potent succinate-cytochrome c reductase inhibitors

In this data article, we have designed a simple and facile protocol for copper-mediated synthesis of new 4-aryloxy-N-arylanilines under mild reaction conditions. The general information and synthetic procedures of all the target compounds were provided, and they were fully characterized by Nuclear Magnetic Resonance (NMR, including 1H NMR and 13C NMR), melting point measurements, and High-Resolution Mass Spectroscopy (HRMS). Furthermore, the inhibitory activities of these compounds against succinate-cytochrome c reductase (SCR) were evaluated, and the methods and procedures of enzyme inhibition experiments were also recorded in this data article. This article is related to “Synthesis of new 4-aryloxy-N-arylanilines and their inhibitory activities against succinate-cytochrome c reductase” (Cheng et al., 2018) [1].


a b s t r a c t
In this data article, we have designed a simple and facile protocol for copper-mediated synthesis of new 4-aryloxy-N-arylanilines under mild reaction conditions. The general information and synthetic procedures of all the target compounds were provided, and they were fully characterized by Nuclear Magnetic Resonance (NMR, including 1 H NMR and 13 C NMR), melting point measurements, and High-Resolution Mass Spectroscopy (HRMS). Furthermore, the inhibitory activities of these compounds against succinate-cytochrome c reductase (SCR) were evaluated, and the methods and procedures of enzyme inhibition experiments were also recorded in this data article. This article is related to "Synthesis of new 4-aryloxy-N-arylanilines and their inhibitory activities against succinate-cytochrome c reductase" (Cheng et  Value of the data Data presented here provided the general information and synthetic procedures of various new organic molecules, which will be a valuable guidance for organic chemists.
Data presented here contained full characterization of various new compounds, which will be useful for further scientists to confirm their structures if they are interested in the synthesis of the compounds in this data article.
Data presented here included a detailed explanation about how enzyme inhibition assays were conducted, which could guild those who aim to do similar experiments.

Data
A new series of 4-aryloxy-N-arylanilines (1a-1x) were synthesized by a copper-mediated strategy, and the synthetic scheme as well as the structures of all target compounds were depicted in Fig. 1. Besides, the inhibitory activities of 1a-1x against succinate-cytochrome c reductase (SCR, a mixture of mitochondrial complex II and complex III) were tested and some compounds demonstrated attractive performance. The methods and procedures for the enzyme inhibition assays were provided in this data article.

General considerations
1 H NMR ( 13 C NMR) spectra were recorded on a Bruker Avance 500 (126 MHz) spectrometer in CDCl 3 with TMS as the internal reference. HRMS was analyzed on an Agilent 6520 Accurate-Mass Q-TOF or a Bruker Daltonics microTOF-QII instrument, and melting points were taken on a Buchi B-545 melting point apparatus. The copper salts, solvents, boronic acids and some anilines were purchased from commercial suppliers. Moreover, most of the anilines were prepared according to a literature report [2].

General procedure for synthesis of compounds 1a-1x
Synthesis of 1a-1x followed a classic synthetic procedure for the Chan-Lam coupling of a boronic acid and an amine aided by a copper salt, and the pure products were obtained by column chromatography. See [1] and Supporting information of [1] for the detailed procedure.

Enzyme assay
The overall activities of SCR, complex II and complex III were determined using our previous procedures [3,4]. The preparation of SCR from the porcine heart was essential as reported [5], and DBH 2 was prepared from DB according to the procedure described in a previous publication [3]. In addition, the absolute IC 50 values for all experiments were obtained from a reported method [4]. See [1] and Supporting information of [1] for the detailed procedure.

Characterization data
All the NMR and HRMS data for the target products are supplied in Supplementary information.