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1365958-43-5

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1365958-43-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1365958-43-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,6,5,9,5 and 8 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1365958-43:
(9*1)+(8*3)+(7*6)+(6*5)+(5*9)+(4*5)+(3*8)+(2*4)+(1*3)=205
205 % 10 = 5
So 1365958-43-5 is a valid CAS Registry Number.

1365958-43-5Relevant articles and documents

Lead optimization of 17β-HSD1 inhibitors of the (hydroxyphenyl) naphthol sulfonamide type for the treatment of endometriosis

Henn, Claudia,Einspanier, Almuth,Marchais-Oberwinkler, Sandrine,Frotscher, Martin,Hartmann, Rolf W.

, p. 3307 - 3318 (2012/06/01)

The reduction of estrone to estradiol, the most potent estrogen in human, is catalyzed by 17β-hydroxysteroid dehydrogenase type 1 (17β-HSD1). A promising approach for the treatment of estrogen-dependent diseases is the reduction of intracellular estradiol formation by inhibition of 17β-HSD1. For the species-specific optimization of the (hydroxyphenyl)naphthols, a combinatorial approach was applied and enhanced by a focused synthesis that resulted in the aromatic-substituted (hydroxyphenyl)naphthol sulfonamides. Rigidification of 12 led to the 4-indolylsulfonamide 30, which is a highly active and selective human 17β-HSD1 inhibitor, as well as a highly potent and selective inhibitor of 17β-HSD1 from Callithrix jacchus. It shows no affinity to the estrogen receptors I?± and β and good intracellular activity (T47D). Thus, compound 30 shows good properties for further ADMET studies and might be a candidate for the in vivo proof of concept in C. jacchus.

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