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211678-11-4

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211678-11-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 211678-11-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,1,6,7 and 8 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 211678-11:
(8*2)+(7*1)+(6*1)+(5*6)+(4*7)+(3*8)+(2*1)+(1*1)=114
114 % 10 = 4
So 211678-11-4 is a valid CAS Registry Number.

211678-11-4Relevant articles and documents

Studies on selectin blockers. 7. Structure-activity relationships of sialyl Lewis X mimetics based on modified ser-glu dipeptides

Tsukida, Takahiro,Moriyama, Hideki,Kurokawa, Kiriko,Achiha, Toshio,Inoue, Yoshimasa,Kondo, Hirosato

, p. 4279 - 4287 (2007/10/03)

We have previously found that heterochiral fucodipeptides, L-Ser-D-Glu (3a) and D-Ser-L-Glu (3b), exhibited up to 20-100 times more potency than a sialyl Lewis X (sLe(X), 1) and a 3'sulfated Lewis X analogue (2) toward E- selectin binding and have also proposed, from molecular dynamics calculation, that their strong activities would depend on a possible formation of the type II and/or type II' β-turn of compounds 3a,b (Tsukida, T.; Hiramatsu, Y.; Tsujishita, H.; Kiyoi, T.; Yoshida, M.; Kurokawa, K.; Moriyama, H.; Ohmoto, H.; Wada, Y.; Saito, T.; Kondo, H. J. Med. Chem. 1997, 40, 3534-3541). To clarify our hypothesis, we synthesized several analogues of compounds 3a,b and investigated their structure-activity relationships. As a result, it was indicated that the type II and/or type II' β-turn conformation would be a comparatively tight form and would play important roles in favorable binding to E-selectin. These findings indicate that sLe(X) mimetics with type II and type II' β-turn dipeptides could be a useful methodology for the design of an active selectin blocker.

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