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944282-79-5

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944282-79-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 944282-79-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,4,2,8 and 2 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 944282-79:
(8*9)+(7*4)+(6*4)+(5*2)+(4*8)+(3*2)+(2*7)+(1*9)=195
195 % 10 = 5
So 944282-79-5 is a valid CAS Registry Number.

944282-79-5Downstream Products

944282-79-5Relevant articles and documents

Synthesis of the potent anticancer agents ottelione A and ottelione B in both racemic and natural optically pure forms

Clive, Derrick L. J.,Liu, Dazhan

, p. 3078 - 3087 (2008/09/19)

(Chemical Equation Presented) The powerful antitumor agents ottelione A and B were synthesized in racemic form by a method that relies on selective ring closing metathesis. Optically pure natural (+)-ottelione A was then made from D-ribose, via an α-keto cyclopropane. A key feature of the route is that the cyclopropyl group controls the stereochemistry in the attachment of the ArCH2 unit and is then converted by the action of SmI2 into a vinyl group, so that the substituents on the resulting five-membered ring have the required trans relationship. Epimerization of an intermediate gave access by the same method to the trans ring fused isomer (-)-ottelione B.

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