The first synthesis of [11C]J147, a new potential PET agent for imaging of Alzheimer’s disease
作者:Min Wang、Mingzhang Gao、Qi-Huang Zheng
DOI:10.1016/j.bmcl.2012.11.031
日期:2013.1
J147 was synthesized from 2,4-dimethylphenylhydrazine hydrochloride and 3-methoxybenzaldehyde in 2 steps with 71% overall yield. The precursor desmethyl-J147 was synthesized from 3-hydroxybenzaldehyde and 2,4-dimethylphenylhydrazine hydrochloride in 4 steps with 63% overall yield. [C-11]J147 was prepared from desmethyl-J147 with [C-11]CH3OTf through O-[C-11] methylation and isolated by HPLC combined with solid-phase extraction (SPE) in 35-50% radiochemical yield based on [C-11]CO2 and decay corrected to end of bombardment (EOB), with 370-740 GBq/mu mol specific activity at EOB. (C) 2012 Elsevier Ltd. All rights reserved.
EP3755316A4
申请人:——
公开号:EP3755316A4
公开(公告)日:2022-05-25
2,2,2-TRIFLUOROACETIC ACID 1-(2,4-DIMETHYLPHENYL)-2-[(3-METHOXYPHENYL) METHYLENE] HYDRAZIDE POLYMORPHS AND METHOD OF MAKING THE SAME
申请人:O'Neil, Michael
公开号:EP3755316A1
公开(公告)日:2020-12-30
[EN] 2,2,2-TRIFLUOROACETIC ACID 1-(2,4-DIMETHYLPHENYL)-2-[(3-METHOXYPHENYL) METHYLENE] HYDRAZIDE POLYMORPHS AND METHOD OF MAKING THE SAME<br/>[FR] POLYMORPHES DU 1-(2,4-DIMÉTHYLPHÉNYL)-2-[(3-MÉTHOXYPHÉNYL)MÉTHYLÈNE]HYDRAZIDE DE L'ACIDE 2,2,2-TRIFLUOROACÉTIQUE ET LEUR PROCÉDÉ DE PRÉPARATION
申请人:ONEIL MICHAEL
公开号:WO2019164997A1
公开(公告)日:2019-08-29
Crystalline polymorph forms of neurotrophic agent 2,2,2-trifluoroacetic acid 1-(2,4- Dimethylphenyl)-2-[(3-methoxyphenyl)methylene]hydrazide (J147), and process for producing the crystalline polymorphic form are provided.