Patent · US Active

Salt polymorph of thioxanthene-9-ylidene-1-methyl piperidine acid addition salts as antimigraine compounds

US9708304B2 · kind B2 · utility

0Cited by

0References

15Claims

0Family size

Assignee

Biofrontera Bioscience GmbH · DE

Inventors

Beate Schmitz
Hermann LUEBBERT · Leverkusen, DE

Key dates

Filing date	Jan 31, 2014
Grant date	Jul 18, 2017
Priority date	—
Expiry date	Jan 31, 2034

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61P25/06
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The present invention relates to novel crystal forms of 4-(6-ethoxy-1-methoxy-thioxanthene-9-ylidene)-1-methyl piperidine salts and 4-(6-ethoxy-1-hydroxy-thioxanthene-9-ylidene)-1-methyl piperidine salts; especially to novel crystal forms of 4-(6-ethoxy-1-methoxy-thioxanthene-9-ylidene)-1-methyl piperidine hydrochloride and 4-(6-ethoxy-1-hydroxy-thioxanthene-9-ylidene)-1-methyl piperidine hydrochloride as well as to the use of these salts for preventing or treating migraine or pulmonary hypertension.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.