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Hangzhou, CN
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last 30 patents
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Patent Grant
3,4-dihydroxy-n-(1′-benzyl-2′-hydroxyethyl)-2-methylpyridine chlori...
Patent number
12,234,208
Issue date
Feb 25, 2025
HANGZHOU ZEDE PHARMA-TECH CO. LTD.
Yongping Yu
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Quinazoline derivative, preparation method therefor, intermediate,...
Patent number
9,371,292
Issue date
Jun 21, 2016
SHANGHAI PHARMACEUTICALS HOLDINGS CO., LTD.
Guangxin Xia
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
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Patent Application
SYNTHESIS METHOD FOR SELAMECTIN
Publication number
20230257411
Publication date
Aug 17, 2023
ZHEJIANG RONGYAO BIOTECH CO., LTD.
Rener CHEN
C07 - ORGANIC CHEMISTRY
Information
Patent Application
3,4-DIHYDROXY-N-(1'-BENZYL-2'-HYDROXYETHYL)-2-METHYLPYRIDINE CHLORI...
Publication number
20220356156
Publication date
Nov 10, 2022
HANGZHOU ZEDE PHARMA-TECH CO. LTD.
Yongping YU
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
QUINAZOLINE DERIVATIVE, PREPARATION METHOD THEREFOR, INTERMEDIATE,...
Publication number
20140206687
Publication date
Jul 24, 2014
ZHEJIANG UNIVERSITY
Guangxin Xia
C07 - ORGANIC CHEMISTRY