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1335054-44-8

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1335054-44-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1335054-44-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,5,0,5 and 4 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1335054-44:
(9*1)+(8*3)+(7*3)+(6*5)+(5*0)+(4*5)+(3*4)+(2*4)+(1*4)=128
128 % 10 = 8
So 1335054-44-8 is a valid CAS Registry Number.

1335054-44-8Downstream Products

1335054-44-8Relevant articles and documents

P1-Substituted Symmetry-Based Human Immunodeficiency Virus Protease Inhibitors with Potent Antiviral Activity against Drug-Resistant Viruses

Degoey, David A.,Grampovnik, David J.,Chen, Hui-Ju,Flosi, William J.,Klein, Larry L.,Dekhtyar, Tatyana,Stoll, Vincent,Mamo, Mulugeta,Molla, Akhteruzzaman,Kempf, Dale J.

, p. 7094 - 7104 (2011/12/03)

Because there is currently no cure for HIV infection, patients must remain on long-term drug therapy, leading to concerns over potential drug side effects and the emergence of drug resistance. For this reason, new and safe antiretroviral agents with improved potency against drug-resistant strains of HIV are needed. A series of HIV protease inhibitors (PIs) with potent activity against both wild-type (WT) virus and drug-resistant strains of HIV was designed and synthesized. The incorporation of substituents with hydrogen bond donor and acceptor groups at the P1 position of our symmetry-based inhibitor series resulted in significant potency improvements against the resistant mutants. By this approach, several compounds, such as 13, 24, and 29, were identified that demonstrated similar or improved potencies compared to 1 against highly mutated strains of HIV derived from patients who previously failed HIV PI therapy. Overall, compound 13 demonstrated the best balance of potency against drug resistant strains of HIV and oral bioavailability in pharmacokinetic studies. X-ray analysis of an HIV PI with an improved resistance profile bound to WT HIV protease is also reported.

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