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68760-55-4

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68760-55-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 68760-55-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,7,6 and 0 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 68760-55:
(7*6)+(6*8)+(5*7)+(4*6)+(3*0)+(2*5)+(1*5)=164
164 % 10 = 4
So 68760-55-4 is a valid CAS Registry Number.

68760-55-4Downstream Products

68760-55-4Relevant articles and documents

Enantioselective total synthesis of (R)-strongylodiols A and B

Reber, Stefan,Kn?pfel, Thomas F.,Carreira, Erick M.

, p. 6813 - 6817 (2003)

We describe an expeditious enantioselective total synthesis of the acetylenic marine natural products (R)-strongylodiols A and B. Central to the strategy is the use of Zn(OTf)2, amine base, and N-methyl ephedrine to mediate the direct addition of a 1,3-diyne to two long-chain aliphatic aldehydes in useful selectivities and yields.

Asymmetric synthesis of cytotoxic sponge metabolites R-strongylodiols A and B

Kirkham, James E. D.,Courtney, Timothy D. L.,Lee, Victor,Baldwin, Jack E.

, p. 5645 - 5647 (2007/10/03)

The asymmetric synthesis of the marine sponge natural products, R-strongylodiols A 1 and B 2 using a minimum protection strategy is described. The chirality of the natural products was introduced via the Noyori asymmetric reduction of ynones.

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