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1441070-77-4

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1441070-77-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1441070-77-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,4,1,0,7 and 0 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1441070-77:
(9*1)+(8*4)+(7*4)+(6*1)+(5*0)+(4*7)+(3*0)+(2*7)+(1*7)=124
124 % 10 = 4
So 1441070-77-4 is a valid CAS Registry Number.

1441070-77-4Relevant articles and documents

A convenient synthesis of 4-(2-hydroxyethyl)indolin-2-one, a useful intermediate for the preparation of both dopamine receptor agonists and protein kinase inhibitors

Matera, Carlo,Quadri, Marta,Pelucchi, Silvia,De Amici, Marco,Dallanoce, Clelia

, p. 1139 - 1144 (2014)

This paper describes a practical approach to the preparation of 4-(2-hydroxyethyl)indolin-2-one, a key intermediate in the synthesis of dopaminergic agonists such as ropinirole - a drug used in the treatment of Parkinson's disease and restless legs syndrome - and of two sets of protein kinase inhibitors. The sequence starts from commercially available 2-(2-methyl-3-nitrophenyl)acetic acid, which is converted in five steps into the desired target compound. This procedure offers a convenient alternative route to existing methodologies, given its milder reaction conditions, ease of implementation, and its overall yield (59 %).

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