- A chromatography-free synthesis of racemic salbutamol hemisulfate
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Our efforts to achieve an efficient synthesis of racemic salbutamol hemisulfate are described. The selected chemical route starts from commodity chemicals and allows the generation of salbutamol hemisulfate in 5 steps and 44% overall yield without any purification by column chromatography. The reaction sequence has been optimized to provide the title compound using robust procedures. Emphasis on reproducibility and experimental simplicity drove the work described herein.
- Vanoost, Agathe,Petit, Laurent
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- SUBSTITUTED HYDRAZIDE COMPOUNDS AND USE THEREOF
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The invention relates to substituted hydrazide compounds as shown by general formula I, including geometrical isomers, pharmaceutically acceptable salts, hydrates, solvates or prodrugs thereof, and use of the same, wherein the substitutents Ar and R have the same meanings as given in the Description. The invention further relates to the use of compounds of general formula I in the preparation of medicament for the treatment and/or prevention of cancer and other proliferative diseases.
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Page/Page column 15
(2012/06/16)
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- SUBSTITUTED HYDRAZIDE COMPOUNDS AND APPLICATION THEREOF
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The invention relates to substituted hydrazide compounds as shown by general formula I, including geometrical isomers, pharmaceutically acceptable salts, hydrates, solvates or prodrugs thereof, and use of the same, wherein the substitutents Ar and R having the same meanings as given in the Description. T The invention further relates to the use of compounds of general formula I in the preparation of medicament for the treatment and/or prevention of cancer and other proliferative diseases.
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Page/Page column 18
(2012/07/03)
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- Intermediates in the preparation of alpha1(((1,1-dimethylethyl) amino) methyl)-4-hydroxy-1,3-benzenedimethanol
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There is disclosed an improved process for preparing albuterol which comprises reacting a 5-(haloacetyl)-2-hydroxybenzaldehyde with 1,1-dimethylethanamine in an organic solvent and in an inert atmosphere to form 5-[[(1,1-dimethylethyl)amino]acetyl]-2-hydr
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