Preparation of two D2 partial agonists in C-14 and stable isotope labeled forms
作者:Charles S. Elmore、Mark E. Powell、Hui Xiong、Ye Wu、Lijuan Wang、David Saunders、Rebecca A. Urbanek
DOI:10.1002/jlcr.2951
日期:2012.7
prepared in stable isotope and C-14labeled forms. Both compounds contained an aminothiazole ring, and the C-14label was introduced into the ring using KS14CN. However, the use of KS14CN to form [14C]-2 gave poor results; therefore, benzoyl [14C]isothiocyanate was used instead, which led to a much improved yield. The stable isotope labeled forms were prepared with the label in the side chain from [2H5]ethyl