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1206676-80-3

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1206676-80-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1206676-80-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,6,6,7 and 6 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1206676-80:
(9*1)+(8*2)+(7*0)+(6*6)+(5*6)+(4*7)+(3*6)+(2*8)+(1*0)=153
153 % 10 = 3
So 1206676-80-3 is a valid CAS Registry Number.

1206676-80-3Upstream product

1206676-80-3Relevant articles and documents

PROCESS FOR THE PRODUCTION OF FUSED, TRICYCLIC SULFONAMIDES

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Page/Page column 114, (2010/11/04)

The present invention provides methods, i.e., scalable or large-scale processes for the production of fused, tricyclic sulfonamido analogs, such as substituted or unsubstituted 5- (aryl-sulfonyl)-4,5-dihydro- 1H-pyrazolo[4,3-c]quinolines and 5-(heteroaryl-sulfonyl)-4,5- dihydro-1H-pyrazolo[4,3-c]quinolines. Exemplary methods of the invention include an intra-molecular cyclization step, in which a carbon-nitrogen bond is formed, and which employs a copper-based catalyst that contains at least one organic ligand, such as DMEDA. The invention further provides compounds, which are useful as intermediates in the methods of the invention.

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