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317855-28-0

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317855-28-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 317855-28-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,7,8,5 and 5 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 317855-28:
(8*3)+(7*1)+(6*7)+(5*8)+(4*5)+(3*5)+(2*2)+(1*8)=160
160 % 10 = 0
So 317855-28-0 is a valid CAS Registry Number.

317855-28-0Relevant articles and documents

Novel heteroatom-containing vitamin D3 analogs: Efficient synthesis of 1α,25-dihydroxyvitamin D3-26,23-lactam

Kato, Yuko,Hashimoto, Yuichi,Nagasawa, Kazuo

, p. 488 - 499 (2003)

Vitamin D3 and its synthetic analogs are promising compounds for controlling various types of cell differentiation. In this article, we describe the synthesis of novel vitamin D3 analogs containing heteroatoms in their side chains - so-called vitamin D3 lactam analogs - via 1,3-dipolar cycloaddition reaction as a key step.

A stereoselective total synthesis of decarestrictine I

Yadav, Jhillu Singh,Venkatesh, Miriyal,Kumar, Alleni Suman,Reddy, Poli Adi Narayana,Reddy, Basi V. Subba,Prasad, Attaluri R.

, p. 830 - 838 (2014/07/07)

A convergent and stereoselective total synthesis of decarestrictine I, a polyketide natural product, is described. Both acid and alcohol fragments were prepared from the readily available L-malic acid via Still-Gennari olefination and Sharpless asymmetric epoxidation. The Steglich esterification and ring-closing metathesis (RCM) are employed to combine both acid and alcohol fragments. Copyright

Total synthesis of nonenolide

Meshram, Harshadas Mitaram,Kumar, Dachepally Aravind,Ramesh, Palakuri

experimental part, p. 1422 - 1427 (2010/09/12)

A novel synthetic route has been reported for the synthesis of nonenolide. The syntheses of fragments were initiated from commercially available and inexpensive starting materials. The synthesis involves key steps like Sharpless epoxidation, Jacobsen's re

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