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72224-22-7

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72224-22-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 72224-22-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,2,2 and 4 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 72224-22:
(7*7)+(6*2)+(5*2)+(4*2)+(3*4)+(2*2)+(1*2)=97
97 % 10 = 7
So 72224-22-7 is a valid CAS Registry Number.

72224-22-7Relevant articles and documents

A simple method for chemoselective phenol alkylation

Liu, Pingli,Huang, Liang,Faul, Margaret M.

, p. 7380 - 7382 (2007)

A simple and effective method for chemoselective alkylation of phenol over carboxylic acid using a 40% aqueous solution of tetrabutylphosphonium hydroxide that affords the desired phenyl ethers in 82-99% yield is described.

Synthesis and biological evaluation of 3-styrylchromone derivatives as selective monoamine oxidase B inhibitors

Takao, Koichi,Takemura, Yuri,Nagai, Junko,Kamauchi, Hitoshi,Hoshi, Kaori,Mabashi, Ryo,Uesawa, Yoshihiro,Sugita, Yoshiaki

, (2021/06/15)

A series of 3-styrylchromone derivatives was synthesized and evaluated for monoamine oxidase (MAO) A and B inhibitory activities. Most of all derivatives inhibited MAO-B selectively, except compound 21. Compound 19, which had a methoxy group at R2 on the chromone ring and chlorine at R4 on phenyl ring, potently inhibited MAO-B, with an IC50 value of 2.2 nM. Compound 1 showed the highest MAO-B selectivity, with a selectivity index of >3700. Further analysis of these compounds indicated that compounds 1 and 19 were reversible and mixed-type MAO-B inhibitors, suggesting that their mode of action may be through tight-binding inhibition to MAO-B. Quantitative structure–activity relationship (QSAR) analyses of the 3-styrylchromone derivatives were conducted using their pIC50 values, through Molecular Operating Environment (MOE) and Dragon. There were 1796 descriptors of MAO-B inhibitory activity, which showed significant correlations (P 50 value index exhibited a determination coefficients (R2) of 0.972 and a Leave-One-Out cross-validated determination coefficients (Q2) of 0.914. These data suggest that the 3-styrylchromone derivatives assessed herein may be suitable for the design and development of novel MAO inhibitors.

Synthesis and biological evaluation of 3-styrylchromone derivatives as free radical scavengers and α-glucosidase inhibitors

Takao, Koichi,Ishikawa, Ryo,Sugita, Yoshiaki

, p. 810 - 815 (2016/10/12)

A series of 3-styrylchromone derivatives (4-20) were synthesized and the structure-activity relationships for α-glucosidase inhibition and antioxidant activities were analyzed. Among the synthesized compounds, compounds 15 and 20, which contain a catechol moiety, showed both potent 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging activity (15: EC50 =17 μM; 20: EC50 =23 μM) and α-glucosidase inhibitory activity (15: IC50 =16 μM; 20: IC50 =10 μM). Our data suggest that 3-styrylchromone derivatives are novel α-glucosidase inhibitors that have the potential to counteract diet-induced hyperglycemia in diabetes.

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