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857652-06-3

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857652-06-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 857652-06-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,6,5 and 2 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 857652-06:
(8*8)+(7*5)+(6*7)+(5*6)+(4*5)+(3*2)+(2*0)+(1*6)=203
203 % 10 = 3
So 857652-06-3 is a valid CAS Registry Number.

857652-06-3Relevant articles and documents

DIBENZOCYCLOHEPTATONE DERIVATIVES AND PHARMACEUTICAL AGENTS CONTAINING SAID COMPOUNDS

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Page/Page column 28, (2012/05/20)

The present invention relates to compounds of the formula I wherein R1, R2, R3, R4, X and Y have the meanings given in the description. The compounds have an action which is immunomodulating and inhibits or regulates the release of IL-1β and/or TNF-α. The

The total synthesis of coleophomones B, C, and D

Nicolaou,Montagnon, Tamsyn,Vassilikogiannakis, Georgios,Mathison, Casey J. N.

, p. 8872 - 8888 (2007/10/03)

Members of the coleophomone family of natural products all possess several intriguing and challenging architectural features, as well as exhibit unusual biological activity. They, therefore, constitute attractive targets for synthesis. In this Article, we describe the total synthesis of coleophomones B (2), C (3), and D (4). The highly strained and congested 11-membered macrocycle of coleophomones B (2) and C (3) was constructed using an impressive olefin metathesis reaction. Furthermore, both of the requisite geometric isomers of the Δ within the macrocycle could be accessed from a common precursor, facilitating a divergence that lent the coleophomone B (2)/C (3) synthesis an unusually high degree of efficiency. The synthesis of coleophomone D (4) confirmed that it exists as a dynamic mixture of isomeric forms with a different aromatic substitution pattern from the other family members.

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