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(R)-5-Pentyl-2-pyrrolidinone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

118015-99-9

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118015-99-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 118015-99-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,0,1 and 5 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 118015-99:
(8*1)+(7*1)+(6*8)+(5*0)+(4*1)+(3*5)+(2*9)+(1*9)=109
109 % 10 = 9
So 118015-99-9 is a valid CAS Registry Number.

118015-99-9Upstream product

118015-99-9Relevant articles and documents

Stereoselective Synthesis of (+/-)-Indolizidines 167B, 205A, and 207A. Enantioselective Synthesis of (-)-Indolizidine 209B

Holmes, Andrew B.,Smith, Adrian L.,Williams, Simon F.,Hughes, Leslie R.,Lidert, Zev,Swithenbank, Colin

, p. 1393 - 1405 (2007/10/02)

The first syntheses of the dendrobatid indolizidine alkaloids 167B (3), 205A (4), and 207A (5) are described using as a key step the highly stereoselective intramolecular nitrone cycloaddition of the (Z)-N-alkenylnitrone 10 to prepare the isoxazolidine 11.Mesylate-promoted cyclization of the alcohol 12, followed by reductive cleavage of the resulting mesylate salt, afforded the key axial hydroxymethyl compound 13, which was epimerized via the aldehyde to the equatorial alcohol, and was subsequently reduced to the required 8-methyl-substituted indolizidine.The feasibility of extending this strategy to the enantioselective synthesis of such alkaloids was demonstrated in the first synthesis of (-)-indolizidine 209B (6), whose precursor 10d was obtained from the (S)-glutamate-derived amine 40.

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