452068-48-3Relevant academic research and scientific papers
Process for the preparation of chiral azetidinones
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Page/Page column 5, (2008/06/13)
Processes for preparing compounds of formula I are disclosed comprising the steps of: (a) forming of chiral propionic acid ester compounds of formula V. (b) reacting compounds of formula V with aniline compounds to yield compounds of formula I
Process for the preparation of 1-(4-fluorophenyl)-4(S)-(4-hydroxyphenyl)-azetidin-2-one
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Page 2, (2008/06/13)
A process for preparing a compound of the formula comprising: (a) formation of 3(S)-(4-hydroxyphenyl)-3-methanesulfonyloxy-propionic acid methyl ester compound of the formula (b) cyclization of the product of Step (a) with 4-fluoroaniline to yield 1-(4-fl
BETA-LACTAM COMPOUNDS, PROCESS FOR REPODUCING THE SAME AND SERUM CHOLESTEROL-LOWERING AGENTS CONTAINING THE SAME
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Page/Page column 48, (2010/02/07)
The compounds have the following general formula (I): [wherein: A1, A3 and A4 are hydrogen atom, halogen atom, alkyl group having one to five carbon atoms, alkoxy group having one to five carbon atoms, -COOR1, a following formula (wherein: R1 is hydrogen atom or alkyl group having one to five carbon atoms) or a following formula [wherein: R2 is -CH2OH group, -CH2OC(O)-R1 group or -CO2-R1 group; R3 is -OH group or-OC(O)-R1 group; R4 is -(CH2)kR5(CH2)1- (k and 1 are 0 or 1 more integer; k+1 is 10 or fewer integer); R5 means bond (single bond (-), -CH=CH-, -OCH2-, carbonyl group or -CH(OH)-.]. One of A1, A3 and A4 in formula (I) is must be the group in above mentioned formula (a). A2 is alkyl chain having one to five carbon atoms, alkoxy chain having one to five carbon atoms, alkenyl chain having one to five carbon atoms, hydroxyalkyl chain having one to five carbon atoms or carbonylalkyl chain having one to five carbon atoms. n, p, q or r are 0, 1 or 2.] or their pharmaceutical acceptable salts.
