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143058-81-5

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143058-81-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 143058-81-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,0,5 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 143058-81:
(8*1)+(7*4)+(6*3)+(5*0)+(4*5)+(3*8)+(2*8)+(1*1)=115
115 % 10 = 5
So 143058-81-5 is a valid CAS Registry Number.

143058-81-5Relevant articles and documents

Synthesis of carba analogs of 6-O-(benzyl)-d-allal- and -d-galactal-derived allyl epoxides and evaluation of the regio- and stereoselective behavior in nucleophilic addition reactions

Di Bussolo, Valeria,Frau, Ileana,Checchia, Lorenzo,Favero, Lucilla,Pineschi, Mauro,Uccello-Barretta, Gloria,Balzano, Federica,Roselli, Graziella,Renzi, Gabriele,Crotti, Paolo

body text, p. 4696 - 4709 (2011/06/27)

The new racemic diastereoisomeric epoxides 6α and 6β, the carba analogs of the corresponding d-galactal- and d-allal-derived allyl epoxides have been synthesized and their regio- and stereoselective behavior examined in addition reactions with model O-, C-, N-, and S-nucleophiles. The results have indicated that epoxide 6β has a pronounced tendency toward anti-1,2-addition, whereas epoxide 6α shows interesting levels of syn- and/or anti-1,4-addition processes. A chiral recognition process found with epoxide 6β, turned out to be consistently reduced in epoxide 6α. All the results have been rationalized on the basis of conformational, steric, and stereoelectronic effects.

Synthesis and enzyme-inhibitory activity of methyl acarviosin analogues having the α-manno configuration

Ogawa, Seiichiro,Nakamura, Yoshikazu

, p. 79 - 90 (2007/10/02)

Two methyl acarviosin analogues 3a and 4a, having the α-manno configuration, and their dihydro derivatives 6a and 7a were synthesized by coupling the protected pseudo-sugar epoxides with methyl 4-amino-4-deoxy- and -4,6-dideoxy-α-D-mannopyranoside.Similar

Preparation of building blocks for carba-oligosaccharides related to cell-surface glycans

Ogawa, Seiichiro,Tonegawa, Takeshi,Nishi, Kenji,Yokoyama, Junichi

, p. 173 - 182 (2007/10/02)

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