The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 2015
Filed:
May. 08, 2014
Atomic Energy Council—institute of Nuclear Energy Research, Taoyuan County, TW;
Ching-Yun Lee, Taoyuan County, TW;
Yu Chang, Taoyuan County, TW;
Cheng-Fang Hsu, Taoyuan County, TW;
Yueh-Feng Deng, Taoyuan County, TW;
Atomic Energy Council—Institute of Nuclear Energy Research, Taoyuan County, TW;
Abstract
A method for preparing a radiotracer precursor SnADAM is revealed. The method overcomes shortcomings of conventional synthesis methods including lower yield rate and time-consuming. Moreover, Pd/C catalyst and hydrogen gas are used to catalyze reduction reaction for avoiding the generation of a large amount of intermediate products with similar structures. Thus there is no need to perform isolation and purification processes. The yield rate of the intermediate products is also increased so that its impact on the low yield rate of the final product SnADAM is minimized. A part of the reaction is significantly accelerated by using tris(dibenzylideneacetone)-dipalladium(0) (Pd(dba)) as a catalyst. Thus the production time of SnADAM is shortened.