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226997-95-1

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226997-95-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 226997-95-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,6,9,9 and 7 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 226997-95:
(8*2)+(7*2)+(6*6)+(5*9)+(4*9)+(3*7)+(2*9)+(1*5)=191
191 % 10 = 1
So 226997-95-1 is a valid CAS Registry Number.

226997-95-1Relevant articles and documents

Structure-activity relationship of small-sized HIV protease inhibitors containing allophenylnorstatine

Mimoto, Tsutomu,Kato, Ryohei,Takaku, Haruo,Nojima, Satoshi,Terashima, Keisuke,Misawa, Satoru,Fukazawa, Tominaga,Ueno, Takamasa,Sato, Hideharu,Shintani, Makoto,Kiso, Yoshiaki,Hayashi, Hideya

, p. 1789 - 1802 (2007/10/03)

We designed and synthesized a new class of peptidomimetic human immunodeficiency virus (HIV) protease inhibitors containing a unique unnatural amino acid, allophenylnorstatine [Apns; (2S,3S)-3-amino-2-hydroxy- 4-phenylbutyric acid], with a hydroxymethylcarbonyl (HMC) isostere as the active moiety. A systematic evaluation of structure - activity relationships for HIV protease inhibition, anti-HIV activities, and pharmacokinetic profiles has led to the delineation of a set of structural characteristics that appear to afford an orally available HIV protease inhibitor. Optimum structures, exemplified by 21f (JE-2147), incorporated 3-hydroxy-2- methylbenzoyl groups as the P2 ligand, (R)-5,5-dimethyl-1,3-thiazolidine-4- carbonyl (Dmt) residue at the P1' site, and 2-methylbenzylcarboxamide group as the P2' ligand. The present study demonstrated that JE-2147 has potent antiviral activities in vitro and exhibits good oral bioavailability and plasma pharmacokinetic profiles in two species of laboratory animals.

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