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146554-64-5

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146554-64-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 146554-64-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,6,5,5 and 4 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 146554-64:
(8*1)+(7*4)+(6*6)+(5*5)+(4*5)+(3*4)+(2*6)+(1*4)=145
145 % 10 = 5
So 146554-64-5 is a valid CAS Registry Number.

146554-64-5Downstream Products

146554-64-5Relevant articles and documents

Diastereoselective synthesis of glutamate-appended oxolane rings: Synthesis of (S)-(+)-lycoperdic acid

Cohen, Jamie L.,Chamberlin, A. Richard

, p. 9240 - 9247 (2008/03/14)

(Chemical Equation Presented) The stereocontrolled synthesis of the glutamate-containing natural product (S)-(+)-lycoperdic acid is described. The key transformation in the synthetic route was an efficient diastereoselective annulation of an oxolane ring

Asymmetric synthesis of lycoperdic acid

Yoshifuji,Kaname

, p. 1617 - 1620 (2007/10/03)

Lycoperdic acid [(2S,5'S)-2-amino-3-(5'-carboxy-2'-oxo-5'- tetrahydrofuranyl)propanoic acid], isolated from the mushroom Lycoperdon perlatum, was synthesized from trans-4-hydroxy-L-proline by a six-step route involving samarium diiodide (SmI2)-mediated formation of the spiro-γ- lactone and ruthenium tetroxide (RuO4) oxidation of the L-proline ring system to the L-pyroglutamic acid moiety. Lycoperdic acid (1) was found to undergo hydrolysis of the γ-lactone ring in 1 N hydrochloric acid at 23°C, giving an equilibrated mixture of 1 and the corresponding hydroxy acid.

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