Synthesis of Isotopically Modified Derivatives of Dopamine, Serotonin, and Doxorubicin with Boc-Pro and Boc-[2H]Pro
                                
                                    
                                        作者:V. P. Shevchenko、L. A. Andreeva、I. Yu. Nagaev、N. F. Myasoedov                                    
                                    
                                        DOI:10.1134/s0012500819030030
                                    
                                    
                                        日期:2019.3
                                    
                                    Boc-Pro-Dox, Boc-Pro-DOPA, Boc-Pro-Srt, and Pro-Dox, Pro-DOPA, Pro-Srt, as well as Boc-[H-2]Pro-Dox, Boc-[H-2]Pro-DOPA, Boc-[H-2]Pro-Srt, and [H-2]Pro-Dox, [H-2]Pro-DOPA, [H-2]Pro-Srt have been synthesized for the first time. Boc-[H-2]Pro is the most promising reagent for the preparation of deuterated compounds. The hydrogenation of Boc-Pro in ethyl acetate on palladium catalyst has allowed the introduction of deuterium by a factor of 1.6-1.65 larger than by the hydrogenation of unsaturated proline bound to serotonin and by a factor of three larger than by the hydrogenation of unsaturated proline bound to dopamine. Due to doxorubicin instability under conditions of unsaturated proline hydrogenation, its condensation with Boc-[H-2]Pro is the sole possibility to prepare Boc-[H-2]Pro-Dox. The content of isotopomers in the deuterated products has been determined by mass spectrometry.