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117082-62-9

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117082-62-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117082-62-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,0,8 and 2 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 117082-62:
(8*1)+(7*1)+(6*7)+(5*0)+(4*8)+(3*2)+(2*6)+(1*2)=109
109 % 10 = 9
So 117082-62-9 is a valid CAS Registry Number.

117082-62-9Relevant articles and documents

New methods and reagents in organic synthesis. 92. A stereoselective synthesis of tilivalline and its analogs

Mori, Shigehiro,Ohno, Tomoyasu,Harada, Hiroshi,Aoyama, Toyohiko,Shioiri, Takayuki

, p. 5051 - 5070 (2007/10/02)

Tilivalline (1a), a metabolite from Klebsiella pneumoniae var. oxytoca, and its derivatives 1 have been efficiently and stereoselectively synthesized from diphenyl phosphorazidate, the 2-oxazoline 2, the L-proline derivatives 5, and indole; the key step is a Mannich type intramolecular cyclization accompanied with completely stereoselective introduction of indole. Furthermore, 11-substituted 5H- pyrrolo[2,1-c][1,4]benzodiazepin-5-ones (16) have been also synthesized from the acetal amide 9a and various nucleophiles by the use of this new Mannich type cyclization.

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