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1222858-35-6

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1222858-35-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1222858-35-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,2,8,5 and 8 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1222858-35:
(9*1)+(8*2)+(7*2)+(6*2)+(5*8)+(4*5)+(3*8)+(2*3)+(1*5)=146
146 % 10 = 6
So 1222858-35-6 is a valid CAS Registry Number.

1222858-35-6Relevant articles and documents

Parallel synthesis of a desketoraloxifene analogue library via iodocyclization/palladium-catalyzed coupling

Cho, Chul-Hee,Jung, Dai-Il,Neuenswander, Benjamin,Larock, Richard C.

, p. 501 - 510 (2011/10/31)

For a future structure-activity relationship (SAR) study, a library of desketoraloxifene analogues has been prepared by parallel synthesis using iodocyclization and subsequent palladium-catalyzed coupling reactions. Points of desketoraloxifene diversification involve the two phenolic hydroxyl groups and the aliphatic amine side chain. This approach affords oxygen-bearing 3-iodobenzo[b]thiophenes 4 in excellent yields, which are easily further elaborated using a two-step approach involving Suzuki-Miyaura and Mitsunobu coupling reactions to give multimethoxy-substituted desketoraloxifene analogues 6. Various hydroxyl-substituted desketoraloxifene analogues 7 were subsequently generated by demethylation with BBr3.

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