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91553-31-0

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91553-31-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91553-31-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,5,5 and 3 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 91553-31:
(7*9)+(6*1)+(5*5)+(4*5)+(3*3)+(2*3)+(1*1)=130
130 % 10 = 0
So 91553-31-0 is a valid CAS Registry Number.

91553-31-0Relevant articles and documents

Bis tertiary amide inhibitors of the HIV-1 protease generated via protein structure-based iterative design

Melnick, Michael,Reich, Siegfried H.,Lewis, Kathy K.,Mitchell Jr., Lennert J.,Nguyen, Dzuy,Trippe, Anthony J.,Dawson, Heather,Davies II, Jay F.,Appelt, Krzysztof,Wu, Bor-Wen,Musick, Linda,Gehlhaar, Dan K.,Webber, Stephanie,Shetty, Bhasker,Kosa, Maha,Kahil, Deborah,Andrada, Dominic

, p. 2795 - 2811 (2007/10/03)

A series of potent nonpeptide inhibitors of the HIV protease have been identified. Using the structure of compound 3 bound to the HIV protease, his tertiary amide inhibitor 9 was designed and prepared. Compound 9 was found to be about 17 times more potent than 3, and the structure of the protein- ligand complex of 9 revealed the inhibitor binds in an inverted binding mode relative to 3. Examination of the protein-ligand complex of 9 suggested several modifications in the P1 and P1' pockets. Through these modifications it was possible to improve the activity of the inhibitors another 100-fold, highlighting the utility of crystallographic feedback in inhibitor design. These compounds were found to have good antiviral activity in cell culture, were selective for the HIV protease, and were orally available in three animal models.

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