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228267-27-4

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228267-27-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 228267-27-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,8,2,6 and 7 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 228267-27:
(8*2)+(7*2)+(6*8)+(5*2)+(4*6)+(3*7)+(2*2)+(1*7)=144
144 % 10 = 4
So 228267-27-4 is a valid CAS Registry Number.

228267-27-4Relevant articles and documents

Synthesis of J-111,347, a novel 1β-methylcarbapenem with broad-spectrum antibacterial activity

Imamura, Hideaki,Ohtake, Norikazu,Sakuraba, Shunji,Shimizu, Aya,Yamada, Koji,Morishima, Hajime

, p. 310 - 311 (2000)

Synthesis of J-111,347 (1), a new 1β-methylcarbapenem with broad- spectrum antibacterial activity including that against methicillin-resistant Staphylococcus aureus (MRSA) and Pseudomonas aeruginosa, was achieved via diastereoselective preparation of a side-chain thiol 3 from an optically active (R)3,4-dihydroxybutanal 4.

Structure-activity relationships of trans-3,5-disubstituted pyrrolidinylthio- 1β-methylcarbapenems. Part 1:J-111,347 and related compounds

Imamura, Hideaki,Ohtake, Norikazu,Shimizu, Aya,Jona, Hideki,Sato, Hiroki,Nagano, Rie,Ushijima, Ryosuke,Yamada, Koji,Hashizume, Terutaka,Morishima, Hajime

, p. 109 - 113 (2007/10/03)

1β-Methylcarbapenems having various 3,5-disubstituted pyrrolidinylthio- side chains at C-2 were designed and synthesized. Evaluation of their antibacterial activities indicated that J-111,347 (1a) is the first example of an extremely broad spectrum antibiotic showing activity against methicillin-resistant Staphylococcus aureus (MRSA) as well as Pseudomonas aeruginosa.

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