摘要:
This invention provides a method for producing high-purity iron(III) citrate substantially free of beta-iron hydroxide oxide, high-purity iron(III) citrate substantially free of beta-iron hydroxide oxide, and medical uses thereof.
摘要:
A method of producing a crystal (crystal form III) of 6-(3-chloro-2-fluorobenzyl)-1-[(S)-1-hydroxymethyl-2-methylpropyl]-7-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid, which has an X-ray powder diffraction pattern having characteristic diffraction peaks at diffraction angels 2θ of 8.54°, 14.02°, 15.68°, 17.06°, 17.24°, 24.16°, 25.74° as measured by X-ray powder diffractometer, wherein the method comprises: dissolving a crystal (crystal form II) of 6-(3-chloro-2-fluorobenzyl)-1-[(S)-1-hydroxymethyl-2-methylpropyl]-7-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid, which has an X-ray powder diffraction pattern having characteristic diffraction peaks at diffraction angles 2θ of 6.56°, 13.20°, 19.86°, 20.84°, 21.22°, 25.22° as measured by X-ray powder diffractometer, in a solvent; and adding a seed crystal (crystal form III) of 6-(3-chloro-2-fluorobenzyl)-1-[(S)-1-hydroxymethyl-2-methylpropyl]-7-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid, which has an X-ray powder diffraction pattern having characteristic diffraction peaks at diffraction angles of 2θ of 8.54°, 14.02°, 15.68°, 17.06°, 17.24°, 24.16°, 25.74° as measured by X-ray powder diffractometer, to the solution.
摘要:
The present invention provides a compound useful as a synthetic intermediate for an anti-HIV agent having an integrase inhibitory activity, and a production method thereof, and a production method of an anti-HIV agent using the synthetic intermediate. Specifically, for example, a compound represented by the formula (2'):
wherein R is a fluorine atom or a methoxy group, and R 400 is a hydrogen atom or a C 1 - C 4 alkyl group, or a salt thereof, and a production method thereof, and a production method of an anti-HIV agent using the synthetic intermediate.
摘要:
The present invention provides a crystal of 6-(3-chloro-2-fluorobenzyl)-1-[(S)-1-hydroxymethyl-2-methylpropyl]-7-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid, which shows a particular powder X-ray diffraction pattern of a characteristic diffraction peaks at diffraction angles 2θ(°) as measured by powder X-ray diffractometry. The crystal of the present invention is superior in physical and chemical stability.
摘要:
The present invention provides a crystal of 6-(3-chloro-2-fluorobenzyl)-1-[(S)-1-hydroxymethyl-2-methylpropyl]-7-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid, which shows a particular powder X-ray diffraction pattern of a characteristic diffraction peaks at diffraction angles 2θ(°) as measured by powder X-ray diffractometry. The crystal of the present invention is superior in physical and chemical stability.