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142890-15-1

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142890-15-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 142890-15-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,8,9 and 0 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 142890-15:
(8*1)+(7*4)+(6*2)+(5*8)+(4*9)+(3*0)+(2*1)+(1*5)=131
131 % 10 = 1
So 142890-15-1 is a valid CAS Registry Number.

142890-15-1Relevant articles and documents

2,5-Disubstituted pyrrolidines: Synthesis by enamine reduction and subsequent regioselective and diastereoselective alkylations

Hussaini, Syed Raziullah,Moloney, Mark G.

, p. 2600 - 2615 (2008/02/08)

Methodology for the diastereoselective synthesis of 2,5-disubstituted pyrrolidines by reduction of enamines derived from pyroglutamic acid is reported; the nature of nitrogen protection was found to be critical for the stereochemical control of the reaction outcome. Regioselective manipulation of the C-2 and C-5 substituents is possible, providing access to differently substituted pyrrolidines for a limited number of cases. The Royal Society of Chemistry 2006.

Synthesis, Chemical Reactivity, and Cytotoxicity of 2-Bis(alkoxycarbonyl)methyliden-1-azabicyclohexane Systems Related to Antitumor Antibiotic Carzinophilin A

Hashimoto, Masaru,Yamada, Kaoru,Terashima, Shiro

, p. 975 - 978 (2007/10/02)

Enantiomeric pairs of the title compounds were synthesized starting from (S)- and (R)-pyroglutamic acid.They were found to be susceptible to nucleophilic ring opening of aziridine moieties and to exhibit weak in vitro cytotoxicity.

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