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335209-83-1

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335209-83-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 335209-83-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,5,2,0 and 9 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 335209-83:
(8*3)+(7*3)+(6*5)+(5*2)+(4*0)+(3*9)+(2*8)+(1*3)=131
131 % 10 = 1
So 335209-83-1 is a valid CAS Registry Number.

335209-83-1Relevant articles and documents

Novel Non-Nucleoside Inhibitors of HIV-1 Reverse Transcriptase. 2. Tricyclic Pyridobenzoxazepinones and Dibenzoxazepinones

Klunder, Janice M.,Hargrave, Karl D.,West, MaryAnn,Cullen, Ernest,Pal, Kollol,et al.

, p. 1887 - 1897 (2007/10/02)

Dibenzoxazepin-11(10H)-ones (III), pyridobenzoxazepin-6(5H)-ones (IV), and pyridobenzoxazepin-5(6H)-ones (V) were found to inhibit human immunodeficiency virus type 1 reverse transcriptase with IC50 values as 19 nM.A-ring substitution has a profound effect on activity, with appropriate substituents at the positions ortho and para to the lactam nitrogen providing dramatically enhanced potency.Substitution in the C-ring is generally neutral or detrimental to activity.Although a C-ring amino substituent at the position meta to the lactam carbonyl is generally beneficial to activity, it has essentially no effect when the A-ring is optimally substituted.Like the dipyridodiazepinone nevirapine, compounds III-V are specific for HIV-1 RT, exhibiting no inhibitory activity against HIV-2 RT or other virial reverse transcriptase enzymes.

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