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110522-97-9

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110522-97-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 110522-97-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,0,5,2 and 2 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 110522-97:
(8*1)+(7*1)+(6*0)+(5*5)+(4*2)+(3*2)+(2*9)+(1*7)=79
79 % 10 = 9
So 110522-97-9 is a valid CAS Registry Number.

110522-97-9Downstream Products

110522-97-9Relevant articles and documents

Synthesis of 5-arylthiouridines via electrophilic substitution of 5- bromouridines with diaryl disulfides

Hirota, Kosaku,Tomishi, Tetsuo,Maki, Yoshifumi,Sajiki, Hironao

, p. 161 - 173 (2007/10/03)

Novel synthetic method of 5-arylthiouridine derivatives is described. Treatment of 5-bromo-2',3'-O-isopropylideneuridine (1a) with diaryl disulfides in the presence of sodium hydride at ambient temperature gave the 5-arylthiouridines (2) in moderate yields. The present method is devised by virtue of a combination of efficient participation of the 5'-hydroxy group onto the uracil ring and the electrophilic nature of diaryl disulfide, which was applied to the synthesis of 5-arylthio-1-β-D-arabinofuranosyluracils (8).

A SIMPLE AND GENERAL ENTRY TO 5-SUBSTITUTED URUDINES BASED ON THE REGIOSELECTIVE LITHIATHION CONTROLLED BY A PROTECTING GROUP IN THE SUGAR MOIETY

Hayakawa, Hiroyuki,Tanaka, Hiromichi,Obi, Kikoh,Itoh, Masayuki,Miyasaka, Tadashi

, p. 87 - 90 (2007/10/02)

Lithiathion of 2',3',5'-tris-O-(tert-butyldimethylsilyl)uridine with sec-BuLi/TMEDA occurs at the C-5 position with a high regioselectivity and subsequent reactions of the resulting C-5 lithiated species with a variety of electrophiles provides a general entry to 5-substituted uridines.

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