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377774-80-6

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377774-80-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 377774-80-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,7,7,7,7 and 4 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 377774-80:
(8*3)+(7*7)+(6*7)+(5*7)+(4*7)+(3*4)+(2*8)+(1*0)=206
206 % 10 = 6
So 377774-80-6 is a valid CAS Registry Number.

377774-80-6Relevant articles and documents

Stereocontrolled synthesis of the diene and triene macrolactones of oximidines I and II: Organometallic coupling versus standard macrolactonization

Coleman, Robert S.,Garg, Rahul

, p. 3487 - 3490 (2007/10/03)

(matrix presented) Stereocontrolled construction of the 12-membered diene and triene lactones 1, 2, and 3, characteristic of the antitumor agent oximidines I and II, are reported and were based on an intramolecular Castro-Stephens coupling for the construction of a cyclic enyne or dienyne followed by stereoselective reduction of the cyclic alkyne for introduction of the cis-olefin of the targets. A comparison of the effectiveness of this protocol is made with standard macrolactonization.

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