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75415-97-3

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75415-97-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75415-97-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,4,1 and 5 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 75415-97:
(7*7)+(6*5)+(5*4)+(4*1)+(3*5)+(2*9)+(1*7)=143
143 % 10 = 3
So 75415-97-3 is a valid CAS Registry Number.

75415-97-3Downstream Products

75415-97-3Relevant articles and documents

SEARCH FOR A SIMPLER SYNTHETIC MODEL SYSTEM FOR INTRAMOLECULAR 1,3-DIPOLAR CYCLOADDITION TO THE 5,6-DOUBLE BOND OF A PYRIMIDINE NUCLEOSIDE

Sasaki, Tadashi,Minamoto, Katsumaro,Suzuki, Toshimichi,Yamashita, Shunsuke

, p. 865 - 870 (2007/10/02)

In search for a simpler model system for the study of intramolecular thermal reactions between the base and 5'-functionalized sugar moiety in nucleosides, 1-(3-azidopropyl)uracil (2), 1-(4-azidobutyl) pyrimidines (12 and 13) and 1-(5-azidopentyl)-uracil (14) was synthesized through the corresponding ω-benzoyloxy-(6,7 and 8) and ω-hydroxyalkyl-pyrimidines (9,10 and 11).Heating 2 gave 1,N6-trimethylene-6-aminouracil (4), while heating 12 and 13 gave N1-C6 cleaved addition products, 15 and 16, respectively. 15 was regiospecifically transformed to 1,2,3-triazole derivatives, 17, 18 and 19.Heating 1-(4-azidobutyl)-5-bromourac il (20) yielded 3,9-tetramethylene-8-azaxanthine (22). 9 with NBA gave 1,O6-tetramethylene-5-bromo-6-hydroxy-5,6-dihydrouracil (24) and the 5-brominated analog of 9 (25).The 4-functionalized butyl side chain proved to serve as a substitute for the 5'-functionalized sugar moiety in pyrimidine ribonucleosides.

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