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86258-97-1

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86258-97-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 86258-97-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,6,2,5 and 8 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 86258-97:
(7*8)+(6*6)+(5*2)+(4*5)+(3*8)+(2*9)+(1*7)=171
171 % 10 = 1
So 86258-97-1 is a valid CAS Registry Number.

86258-97-1Downstream Products

86258-97-1Relevant articles and documents

Synthetic studies of carbapenem and penem antibiotics. II. Synthesis of 3-acetyl-2-azetidinones by (2 + 2) cycloaddition of diketene and schiff bases

Sasaki,Goda,Enomoto,Sunagawa

, p. 1094 - 1097 (2007/10/02)

It was found that (2 + 2) cycloaddition reaction of diketene with Schiff bases was effectively promoted by imidazole as a catalyst to afford 3-acetyl-2-azetidinone derivatives 4. As an application of this new method, a practical asymmetric synthesis of 4 and its conversion into (3S,4S)-4-carboxy-1-(di-p-anisylmethyl)-3-[(R)-1-hydroxyethyl]-2-azeti dinone, which is a key intermediate for the synthesis of carbapenem and penem antibiotics, were accomplished.

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