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259739-46-3

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259739-46-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 259739-46-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,9,7,3 and 9 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 259739-46:
(8*2)+(7*5)+(6*9)+(5*7)+(4*3)+(3*9)+(2*4)+(1*6)=193
193 % 10 = 3
So 259739-46-3 is a valid CAS Registry Number.

259739-46-3Relevant articles and documents

Synthesis of 1-benzothiepine and 1-benzazepine derivatives as orally active CCR5 antagonists

Aramaki, Yoshio,Seto, Masaki,Okawa, Tomohiro,Oda, Tsuneo,Kanzaki, Naoyuki,Shiraishi, Mitsuru

, p. 254 - 258 (2007/10/03)

Quaternary ammonium benzocycloheptene compound 1 has previously been reported as a clinical candidate for an injectable CCR5 antagonist. In order to develop an orally active CCR5 antagonist, derivatives of tertiary amine benzocycloheptene 2, the chemical precursor to 1, were investigated. The benzocycloheptene ring was converted to benzothiepine and benzazepine rings and it was found that these changes could enhance the potency of tertiary amine derivatives. In particular, the 1-benzothiepine-1,1-dioxide 11b and the N-methyl-1-benzazepine 18 showed increased activity and good preliminary pharmacokinetic properties. The synthesis of 1-benzothiepine and 1-benzazepine derivatives and their activity are described.

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