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166239-82-3

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166239-82-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 166239-82-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,6,2,3 and 9 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 166239-82:
(8*1)+(7*6)+(6*6)+(5*2)+(4*3)+(3*9)+(2*8)+(1*2)=153
153 % 10 = 3
So 166239-82-3 is a valid CAS Registry Number.

166239-82-3Upstream product

166239-82-3Downstream Products

166239-82-3Relevant articles and documents

Samin-derived flavonolignans, a new series of antidiabetic agents having dual inhibition against α-glucosidase and free radicals

Worawalai, Wisuttaya,Phuwapraisirisan, Preecha

, p. 3169 - 3175 (2020)

A series of novel flavonolignans were synthesized by the reaction between a lignan named samin (1) and a range of flavonoids. This simple and rapid approach allowed direct assembly of these two bulky motifs in good yields without the formation of byproducts. Upon evaluation of antidiabetic activity of the synthesized products, epicatechinosamin (β-2g) was the most active α-glucosidase inhibitor toward maltase and sucrase. The kinetic study indicated that β-2 g inhibited the enzymes in a mixed manner of competitive and noncompetitive inhibition.

Furofuran lignans as a new series of antidiabetic agents exerting α-glucosidase inhibition and radical scarvenging: Semisynthesis, kinetic study and molecular modeling

Worawalai, Wisuttaya,Doungwichitrkul, Titiruetai,Rangubpit, Warin,Taweechat, Panyakorn,Sompornpisut, Pornthep,Phuwapraisirisan, Preecha

, p. 783 - 793 (2019/04/13)

A new series of furofuran lignans containing catechol moiety were prepared from the reactions between lignans and a variety of phenolics. All 22 products obtained were evaluated against three different α-glucosidases (maltase, sucrase and Baker's yeast glucosidase) and DPPH radical. Of furofuran lignans evaluated, β-14, having two catechol moieties and one acetoxy group, was the most potent inhibitor against Baker's yeast, maltase, and sucrase with IC50 values of 5.3, 25.7, and 12.9 μM, respectively. Of interest, its inhibitory potency toward Baker's yeast was 28 times greater than standard drug, acarbose and its DPPH radical scavenging (SC50 11.2 μM) was 130 times higher than commercial antioxidant BHT. Subsequent investigation on mechanism underlying the inhibitory effect of β-14 revealed that it blocked Baker's yeast and sucrase functions by mixed-type inhibition while it exerted non-competitive inhibition toward maltase. Molecular dynamics simulation of the most potent furofuran lignans (4, α-8b, α-14, and β-14) with the homology rat intestinal maltase at the binding site revealed that the hydrogen bond interactions from catechol, acetoxy, and quinone moieties of furofuran lignans were the key interaction to bind tightly to α-glucosidase. The results indicated that β-14 possessed promising antidiabetic activity through simultaneously inhibiting α-glucosidases and free radicals.

Oxygen insertion in Sesamum indicum furanofuran lignans. Diastereoselective syntheses of enzyme substrate analogues

Marchand, Patrice A.,Zajicek, Jaroslav,Lewis, Norman G.

, p. 840 - 849 (2007/10/03)

The furofuran lignans in sesame seed have an unusual oxygen insertion between their furan and aryl rings. In our continuing investigations on the isolation and characterization of the enzyme(s) involved, the diastereoselective syntheses of various substrate analogues for the oxygen insertion step were developed for future substrate specificity and inhibitor studies. This synthetic strategy also provided entry to so-called furofuranone epoxy-lignans, such as salicifoliol from Bupleurum sp., and acuminatolide from Helichrysum sp.

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