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259667-67-9

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259667-67-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 259667-67-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,9,6,6 and 7 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 259667-67:
(8*2)+(7*5)+(6*9)+(5*6)+(4*6)+(3*7)+(2*6)+(1*7)=199
199 % 10 = 9
So 259667-67-9 is a valid CAS Registry Number.

259667-67-9Relevant articles and documents

6-HETEROARYLOXY BENZIMIDAZOLES AND AZABENZIMIDAZOLES AS JAK2 INHIBITORS

-

, (2021/11/13)

The present disclosure provides 6-heteroaryloxy benzimidazole and azabenzimidazole compounds and compositions thereof useful for inhibiting JAK2.

A concise and regioselective synthesis of 6-iodo-4-trifluoromethylisatin, an intermediate in the synthesis of the novel, non-peptidyl growth hormone secretagogue SM-130686

Ewan Hume,Tokunaga, Teruhisa,Nagata, Ryu

, p. 3605 - 3611 (2007/10/03)

The synthesis of 6-iodo-4-trifluoromethylisatin, an intermediate in the synthesis of the growth hormone secretagogue SM-130686, is disclosed. The synthesis is achieved in seven steps, with an overall yield of 32%, and requires a single recrystallisation as the only purification step. 2-Methyl-3-nitrobenzotrifluoride was converted to (4-iodo-6-nitro-2-trifluoromethylphenyl)acetic acid via iodination, condensation with dimethyloxalate and oxidative decarboxylation. Subsequent esterification followed by reductive cyclisation gave 6-iodo-4-trifluoromethyloxindole. Oxindole 3,3-dibromination followed by hydrolysis gave 6-iodo-4-trifluoromethylisatin.

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