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65293-13-2

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65293-13-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 65293-13-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,2,9 and 3 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 65293-13:
(7*6)+(6*5)+(5*2)+(4*9)+(3*3)+(2*1)+(1*3)=132
132 % 10 = 2
So 65293-13-2 is a valid CAS Registry Number.

65293-13-2Relevant articles and documents

Chiral spiro-β-lactams from 6-diazopenicillanates

Santos, Bruna S.,Nunes, Sandra C.C.,Pais, Alberto A.C.C.,Pinho E Melo, Teresa M.V.D.

experimental part, p. 3729 - 3737 (2012/06/30)

Chiral spiro-β-lactam derivatives have been prepared via stereoselective 1,3-dipolar cycloaddition of 6-diazopenicillanates. Using dipolarophiles such as acrylonitrile, acrylates or methyl vinyl ketone spiro-2-pyrazoline-β-lactams were obtained, whereas t

Penicillins as β-lactamase-dependent prodrugs: Enabling role of a vinyl ester exocyclic to the lactam ring

Ruddle, Carol C.,Smyth, Timothy P.

, p. 2332 - 2333 (2007/10/03)

Incorporation of a vinyl ester exocyclic to the β-lactam ring of a penicillin nucleus enables this to act as a β-lactamase-dependent prodrug - rapid release of the (unactivated) alkoxy component of the vinyl ester is triggered by enzyme-catalysed hydrolys

Stereospecific production of 6- or 7-carbon-substituted-β-lactams

-

, (2008/06/13)

Reaction of 6- or 7-diazo-β-lactams with allylic halides in the presence of a catalytic amount of metallic copper or a copper salt affords 6- or 7-carbon-substituted-β-lactams with the desired stereochemical configuration at the 6- or 7-position. Subseque

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