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-14 labeled forms. Both compounds contained an aminothiazole ring, and the C-14 label 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
为了支持开发治疗多巴胺水平失衡导致的疾病的计划,以稳定同位素和 C-14 标记形式制备了两种候选药物 1 和 2。两种化合物都包含一个氨基噻唑环,并且使用 KS14CN 将 C-14 标记引入到环中。然而,使用 KS14CN 形成 [14C]-2 的结果很差;因此,改用苯甲酰[14C]异硫氰酸酯,从而大大提高了产率。稳定同位素标记的形式是由 [2H5]-1 的 [2H5] 乙基碘和 1-[13C] 甲基 [15N2] 吡唑 [13C] 甲醛在侧链中的标记制备的,后者依次由 [羰基-13C]DMF、[15N2] 硫酸肼和 [13C] 甲基碘用于 [13C2, 15N2]-2。版权所有 © 2012 John Wiley & Sons, Ltd.