| —— | tert-butyl 2-(2-((tert-butyldimethylsilyl)oxy)-1-(pyrimidin-2-yl)propyl)-1,6-dimethyl-3-oxo-2,5-diazaspiro[3.4]octane-5-carboxylate | 1621508-39-1 | C26H44N4O4Si | 504.745 | 
                                                                                                                                            
                                        | —— | tert-butyl 2-(2-hydroxy-1-(pyrimidin-2-yl)propyl)-1,6-dimethyl-3-oxo-2,5-diazaspiro[3.4]octane-5-carboxylate | 1621508-40-4 | C20H30N4O4 | 390.483 | 
                                                                                                                                            
                                        | —— | 2-(2-hydroxy-1-(pyrimidin-2-yl)propyl)-5-isobutyryl-3,6-dimethyl-2,5-diazaspiro[3.4]octan-1-one | 1621508-06-2 | C19H28N4O3 | 360.456 | 
                                                                                                                                            
                                        | —— | 2-(2-hydroxy-1-(pyrimidin-2-yl)propyl)-3,6-dimethyl-2,5-diazaspiro[3.4]octan-1-one | 1621507-97-8 | C15H22N4O2 | 290.365 |