61160-18-7Relevant articles and documents
Coumarin heterozygous pyridone compounds having iron chelation and monoamine oxidase B inhibitory activity as well as preparation and application of compounds
-
Page/Page column 12-19, (2019/10/01)
The invention discloses coumarin/pyridone heterozygous derivatives represented by a formula (I) shown in the description or a pharmaceutically-acceptable salt of the derivatives. The preparation method of the coumarin/pyridone heterozygous derivatives comprises the following steps: one pyridone derivative represented by a formula 3 shown in the description is obtained by a series of synthesis by using one hydroxypyrone with different substituent groups represented by a formula 1 shown in the description as a raw material; and a compound represented by a formula 4 shown in the description is subjected to a condensation reaction to obtain a compound represented by a formula 5 shown in the description, one-step bromination is performed to obtain a compound represented by a formula 6 shown inthe description, the compound represented by the formula 6 and the pyridone derivative represented by the formula 3 are subjected to a one-step nucleophilic substitution reaction to obtain a compoundrepresented by a formula 7 shown in the description, and finally an alkyl protecting group in a pyridone structure is removed to obtain one target compound represented by the formula (I). The compounds provided by the invention are a novel series of single-molecular multi-target series drugs, and have iron chelation, targeted MAO-B inhibitory activity, antioxidant activity, unique advantages for an Alzheimer disease with complicated pathogenesis, a clear mechanism of action and excellent activity.
Carbamoyl pyridone HIV-1 integrase inhibitors. 2. Bi- and tricyclic derivatives result in superior antiviral and pharmacokinetic profiles
Kawasuji, Takashi,Johns, Brian A.,Yoshida, Hiroshi,Weatherhead, Jason G.,Akiyama, Toshiyuki,Taishi, Teruhiko,Taoda, Yoshiyuki,Mikamiyama-Iwata, Minako,Murai, Hitoshi,Kiyama, Ryuichi,Fuji, Masahiro,Tanimoto, Norihiko,Yoshinaga, Tomokazu,Seki, Takahiro,Kobayashi, Masanori,Sato, Akihiko,Garvey, Edward P.,Fujiwara, Tamio
, p. 1124 - 1135 (2013/03/28)
This work is a continuation of our initial discovery of a potent monocyclic carbamoyl pyridone human immunodeficiency virus type-1 (HIV-1) integrase inhibitor that displayed favorable antiviral and pharmacokinetic properties. We report herein a series of
Prediction of 3-hydroxypyridin-4-one (HPO) log K1 values for Fe(iii)
Chen, Yu-Lin,Barlow, Dave J.,Kong, Xiao-Le,Ma, Yong-Min,Hider, Robert C.
, p. 10784 - 10791 (2013/01/14)
As a means to aid in the design of 3-hydroxypyridin-4-ones (HPOs) intended for use as therapeutic Fe3+ chelating agents, a novel methodology has been developed using quantum mechanical (QM) calculations for predicting the iron binding affinities of the compounds (more specifically, their log K 1 values). The reported/measured HPO log K1 values were verified through their correlation with the corresponding sum of the compounds' ligating group pKa values. Using a training set of eleven HPOs with known log K1 values, reliable predictions are shown to be obtained with QM calculations using the B3LYP/6-31+G(d)/CPCM model chemistry (with Bondi radii, and water as solvent). With this methodology, the observed log K 1 values for the training set compounds are closely matched by the predicted values, with the correlation between the observed and predicted values giving r2 = 0.9. Predictions subsequently made by this method for a test set of 42 HPOs of known log K1 values gave predicted values accurate to within ±0.32 log units. In order to further investigate the predictive power of the method, four novel HPOs were synthesised and their log K1 values were determined experimentally. Comparison of these predicted log K1 values against the measured values gave absolute deviations of 0.22 (13.87 vs. 14.09), 0.02 (14.31 vs. 14.29), 0.12 (14.62 vs. 14.50), and 0.13 (15.04 vs. 15.17). The prediction methodology reported here is the first to be provided for predicting the absolute log K1 values of iron-chelating agents in the absence of pKa values.