Patent · US Active

Hydrate of 2-isopropoxy-5-methyl-4-(piperidin-4-yl) aniline dihydrochloride, preparation method and use of the same

US10017472B2 · kind B2 · utility

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3Claims

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Assignee

2Y-CHEM, LTD. · CN

Inventors

Jinfeng Song · Shanghai, CN
Xungui He · Shanghai, CN
Wensheng Tang · Shanghai, CN
Yuan Wang · Hangzhou City, CN

Key dates

Filing date	Mar 2, 2016
Grant date	Jul 10, 2018
Priority date	—
Expiry date	Mar 2, 2036

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2009/0095
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention relates to 2-isopropoxy-5-methyl-4-(piperidin-4-yl) aniline dihydrochloride monohydrate and a preparation method of the same. The 2-isopropoxy-5-methyl-4-(piperidin-4-yl) aniline dihydrochloride monohydrate has a very good crystal form and is well suitable for recrystallization purification; further, the effect of impurity removal effect is very good, and any single impurity can be controlled less than 0.1%.

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