莫西沙星盐酸盐一水合物 在
乙醇 作用下,
以
1,2-丙二醇 为溶剂,
25.0~40.0 ℃
、533.24 kPa
条件下,
反应 20.0h,
以to give 8.2 g of moxifloxacin hydrochloride form A的产率得到盐酸莫西沙星
参考文献:
名称:
POLYMORPHS OF 1-CYCLOPROPYL-7-([S,S])-2,8-DIAZADICYCLO[4.3.0]NON-8-YL)-6-FLUORO-1,4-DIHYDRO -8-METHOXY-4-OXO-3-QUINOLINE CARBOXYLIC ACID HYDROCHLORIDE AND METHODS FOR THE PREPARATION THEREOF
Extraction of metals by mercaptans attached to silica gel by azeotropic distillation
申请人:University of South Florida
公开号:US07193114B1
公开(公告)日:2007-03-20
The present invention attaches a molecule that contains a hydroxyl group (OH) attached to a carbon chain which is attached to a coordinating atom or atoms, the acidity of which is greater than that of silica (i.e., pKA <10). The condensation is achieved by mixing silica gel, appropriate amount of ligand, and a drop of conc. sulfuric acid in toluene in a flask attached to a Dean-Stark tube. Heating of the mixture is continued until the amount of water, obtained by azeotropic distillation and condensation, reaches a constant value. Toluene is filtered off, and recycled. The supported ligand is dried under reduced pressure to remove residual toluene. The composite (ligand attached to silica) can then be used by batch or column method to remove heavy metal ions from aqueous solution.
Process for the Synthesis of Moxifloxacin Hydrochloride
申请人:Rao Dharmaraj Ramachandra
公开号:US20100152229A1
公开(公告)日:2010-06-17
A new polymorph of moxifloxacin hydrochloride is described, together with a method for making the polymorph. In addition, new intermediates in the formation of moxifloxacin hydrochloride are described, having formulas (1) and (II):
The present invention relates to novel polymorph of moxifloxacin hydrochloride, processes for its preparation and to pharmaceutical compositions containing it. Thus, for example moxifloxacin hydrochloride is suspended in methanol and water and the p
H
is adjusted to 1.0-2.0 with concentrated hydrochloric acid at 25° C. and the separated solid is collected and dried to obtain moxifloxacin hydrochloride monohydrate polymorph IV.
MOXIFLOXACIN HYDROCHLORIDE COMPOUNDS AND INTERMEDIATES AND METHODS FOR MAKING SAME
申请人:Gottardo Gianni
公开号:US20130059880A1
公开(公告)日:2013-03-07
Methods for producing moxifloxacin hydrochloride compounds having very low levels of impurities are provided. Compounds produced using such methods and pharmaceutical compositions including such compounds are also provided.
PROCESS FOR PREPARING MOXIFLOXACIN AND SALTS THEREOF
申请人:Castellin Andrea
公开号:US20110230661A1
公开(公告)日:2011-09-22
The present invention relates to a process for the synthesis of Moxifloxacin of Formula (I) and salts thereof
by means of a process providing the coupling reaction of 1-cyclopropril-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinic acid or ester thereof with (4aS, 7aS)-octahydro-1H-pyrrole[3,4-b]pyridine using a magnesium salt.