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1-Pyrrolidinecarboxylic acid, 2-(methoxymethyl)-5-oxo-, 1,1-dimethylethyl ester, (2S)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

145220-99-1

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145220-99-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 145220-99-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,5,2,2 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 145220-99:
(8*1)+(7*4)+(6*5)+(5*2)+(4*2)+(3*0)+(2*9)+(1*9)=111
111 % 10 = 1
So 145220-99-1 is a valid CAS Registry Number.

145220-99-1Upstream product

145220-99-1Relevant academic research and scientific papers

Synthesis of (3R,4R,5R)-1-(tert-butoxycarbonyl)-3,4-isopropylidenedioxy-5-methoxyme thyl-2-pyrrolidinone from (S)-pyroglutaminol

Ikota

, p. 1925 - 1927 (2007/10/02)

(3R,4R,5R)-1-(tert-Butoxycarbonyl)-3,4-isopropylidenedioxy-5-methoxyme thyl-2-pyrrolidinone (6), a useful chiral intermediate for the preparation of calyculins, was synthesized starting from (S)-pyroglutaminol via the O-methylation of 1c with diazomethane in the presence of fluoboric acid and cis-dihydroxylation of the α,β-unsaturated lactam (4) as the key reactions.

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