67287-53-0Relevant academic research and scientific papers
A hand natural Philippines Duopan splitting method
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Paragraph 0049; 0050; 0051, (2017/08/25)
The invention discloses resolution of a D1 dopamine receptor agonist drug and in particular discloses a resolution method of fenoldopam. The resolution method of the D1 dopamine receptor agonist drug comprises the steps of protecting a phenolic hydroxyl group and an amino group in the structure of fenoldopam, then carrying out chemical resolution with a chiral acidic resolution agent to obtain a pure optical isomer, and finally removing a protecting group and salifying to obtain optically pure methanesulfonic acid fenoldopam.
Solid oral preparation containing a pyrrolidine derivative with a catechol group
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, (2008/06/13)
An oral solid preparation comprising an organic acid or its salt and a catechol compound. The catechol compound is, for example, a pyrrolidine derivative having a catechol group of the following general formula (I). It exhibits an improved absorbability in vivo. STR1
Benz-tetrasubstituted 1-phenyl-2,3,4,5-tetrahydro-1H-3-benzazepines
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, (2008/06/13)
A group of 6,9-disubstituted-7,8-dihydroxy-1-phenyl-2,3,4,5-tetrahydro-1H-3-benzazepines have dopaminergic activity. Examples of leading species of the invention are 6,9-dichloro-7,8-dihydroxy-1-phenyl-2,3,4,5-tetrahydro-1H-3-benzazepine and 6,9-dichloro-7,8-dihydroxy-1-(p-hydroxy-phenyl)-2,3,4,5-tetrahydro-1H-3-benzazepine in the form of an acid addition salt.
