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228869-37-2

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228869-37-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 228869-37-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,8,8,6 and 9 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 228869-37:
(8*2)+(7*2)+(6*8)+(5*8)+(4*6)+(3*9)+(2*3)+(1*7)=182
182 % 10 = 2
So 228869-37-2 is a valid CAS Registry Number.

228869-37-2Relevant articles and documents

Phthalazine derivatives as phosphodiesterase 4 inhibitors

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, (2008/06/13)

Compounds of formula (I) wherein B is alkylene, amino, CONH or a bond; Cy is optionally substituted phenyl or heteroaryl; R is H, phenyl or (C1-4)alkyl optionally substituted; R1is (C1-6)alkyl or polyfluoro(C1-6)-alkyl; R2is (C4-7)cycloalkyl optionally containing an oxygen atom and optionally substituted; and the N→O derivatives and pharmaceutically acceptable salt thereof are PDE 4 and TNFα inhibitors.

Phthalazine derivatives phosphodiesterase 4 inhibitors

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, (2008/06/13)

The present invention provides a compound selected from the group including: 1-(3,5-dichloro-pyridin-4-ylmethyl)-6-methoxy-4-phenyl-phthalazine; 4-(3,5-dichloro-pyridin-4-ylmethyl)-7-methoxy-1H-phthalazin-2-carboxylic acid methyl ester; benzyl-{3-{1-(3,5-dichloro-pyridin-4-ylmethyl)-6-methoxy-phthalazin-5-yl}-prop-2-ynyl}-methyl-amine; 1-(3,5-dichloro-pyridin-4-ylmethyl)-6-methoxy-5-(5-morpholin-4-yl-pent-1-ynyl)-phthalazine dihydrochloride; 3-{1-(3,5-dichloro-pyridin-4-ylmethyl)-6-methoxy-phthalazin-5-yl}-prop-2-yn-1-ol; 1-(3,5-dichloro-pyridin-4-ylmethyl)-6-methoxy-4-morpholin-4-yl-phthalazine; 1-(3,5-dichloro-pyridin-4-ylmethyl)-6-methoxy-4-(1,2,4)triazol-1-yl-phthalazine; N→O derivatives thereof; and pharmaceutically acceptable salts thereof. The invention also provides a pharmaceutical composition which includes a therapeutically effective amount of the above compound in admixture with a suitable carrier.

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