| —— | methyl (1S,4aS,5aS,14aS)-11-ethoxy-4a,5,5a,12,14,14a-hexahydro-1-methyl-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-4-carboxylate | 314249-42-8 | C23H26N2O4 | 394.47 | 
                                                                                                                                            
                                        | —— | (1S,4aS,5aS,14aS)-11-ethoxy-4a,5,5a,12,14,14a-hexahydro-4-hydroxymethyl-1-methyl-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline | 314249-43-9 | C22H26N2O3 | 366.46 | 
                                                                                                                                            
                                        | —— | methyl (1S,4aS,5aS,14aS)-4a,5,5a,6,11,12,14,14a-octahydro-1-methyl-11-oxo-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-4-carboxylate | 314295-63-1 | C21H22N2O4 | 366.417 | 
                                                                                                                                            
                                        | 四氢鸭脚木碱 | (+/-)-tetrahydroalstonine | 6474-90-4 | C21H24N2O3 | 352.433 |