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848416-40-0

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848416-40-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 848416-40-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,8,4,1 and 6 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 848416-40:
(8*8)+(7*4)+(6*8)+(5*4)+(4*1)+(3*6)+(2*4)+(1*0)=190
190 % 10 = 0
So 848416-40-0 is a valid CAS Registry Number.

848416-40-0Relevant articles and documents

7-(4-SUBSTITUTED 3- CYCLOPROPYLAMINOMETHYL-1- PYRROLIDINYL) Q UINOLONECARBOXYLIC ACID DERIVATIVE

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Page/Page column 12, (2008/06/13)

To provide novel quinolonecarboxylic acid compounds serving as safe, strong antibacterial agents that are effective against drug-resistant bacteria that are less susceptible to conventional antibacterial agents. SOLVING MEANS There are provided 7-(4-substituted-3-cyclopropylaminomethylpyrrolidinyl)quinolonecarboxylic acid derivatives (such as 1-cyclopropyl-7-[(3S,4S)-3-cyclopropylaminomethyl-4-fluoro-1-pyrrolidinyl]-6-fluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid) that exhibit strong antibacterial activity against gram-positive bacteria, such as MRSA, PRSP and VRE, while being safe. The compounds are shown by the following general formula (I):

A practical large-scale synthesis of (3R,4R)-4-(Hydroxymethyl)pyrrolidin-3- ol via asymmetric 1,3-dipolar cycloaddition

Kotian, Pravin L.,Lin, Tsu-Hsing,El-Kattan, Yahya,Chand, Pooran

, p. 193 - 197 (2012/12/24)

(3R,4R)-4-(Hydroxymethyl)pyrrolidin-3-ol (1), which is a useful intermediate for the synthesis of various bioactive molecules, has been synthesized in 51% overall yield by 1,3-dipolar cycloaddition reaction from the dipolarophile, (E)-3-benzyloxypropenoyl-(2′S)-bornane-10,2-sultam (5), and the achiral ylide precursor, N-(benzyl)-N-(methoxymethyl)-N- (trimethylsilylmethyl)amine (6), without using chromatography and the subsequent reduction with LAH and catalytic hydrogenation. The diastereomers 7 and 8 were separated by crystallization, and efficient procedures were developed for the subsequent reactions to afford 1.

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