| —— | (+/-)-Methyl 7-(chloroacetoxy)-2-methoxy-8-oxogibba-1,3,4a(10a),4b-tetraene-1-carboxylate | 75758-93-9 | C20H19ClO6 | 390.82 | 
                                                                                                                                            
                                        | —— | Methyl 12-hydroxy-5-methoxy-13-oxotetracyclo[10.2.1.01,9.03,8]pentadeca-3(8),4,6,9-tetraene-4-carboxylate | 75779-21-4 | C18H18O5 | 314.338 | 
                                                                                                                                            
                                        | —— | methyl 2'-methoxy-7'-(methoxymethoxy)-6',10'-dihydro-7'H,9'H-spiro[[1,3]dioxolane-2,8'-[7,9a]methanobenzo[a]azulene]-1'-carboxylate | 75758-85-9 | C22H26O7 | 402.444 | 
                                                                                                                                            
                                        | —— | Methyl 5'-methoxy-12'-(methoxymethoxy)spiro[1,3-dioxolane-2,13'-tetracyclo[10.2.1.01,9.03,8]pentadeca-3(8),4,6,9-tetraene]-4'-carboxylate | 75758-85-9 | C22H26O7 | 402.444 | 
                                                                                                                                            
                                        | —— | Methyl 12'-hydroxy-5'-methoxyspiro[1,3-dioxolane-2,13'-tetracyclo[10.2.1.01,9.03,8]pentadeca-3(8),4,6,9-tetraene]-4'-carboxylate | 75758-94-0 | C20H22O6 | 358.391 |