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652970-37-1

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652970-37-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 652970-37-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,2,9,7 and 0 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 652970-37:
(8*6)+(7*5)+(6*2)+(5*9)+(4*7)+(3*0)+(2*3)+(1*7)=181
181 % 10 = 1
So 652970-37-1 is a valid CAS Registry Number.

652970-37-1Downstream Products

652970-37-1Relevant articles and documents

Synthetic study of optically active 3-azabicyclo[3.3.0]octane-2,6,8- tricarboxylic acid

Arakawa, Yasushi,Ohnishi, Masafumi,Yoshimura, Norikazu,Yoshifuji, Shigeyuki

, p. 1015 - 1020 (2007/10/03)

Synthesis of (1R,2S,5S,6R,8S)-3-azabicyclo[3.3.0]octane-2,6,8-tricarboxylic acid (2) from trans-4-hydroxy-L-proline (5) was attempted. A Diels-Alder reaction of 3,4-dehydroproline derivative 9 and cyclopentadiene afforded a single stereoisomer 11. The Diels-Alder adduct was smoothly converted to the hydrochloride of 2 (24) via RuO4 oxidation. Although some racemization of the material or product was observed during the synthetic processes, the amino acid 24 proved to be optically pure.

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