organic heterocyclic compound oxide symphytine oxide 0 397.21005 397.468 C20H31NO7 A pyrrolizine that is the <em>N</em>-oxido derivative of symphytine. Isolated from extracts of comfrey root. (1R,7aR)-7-({[(2S,3S)-2,3-dihydroxy-2-isopropylbutanoyl]oxy}methyl)-4-oxido-2,3,5,7a-tetrahydro-1H-pyrrolizin-1-yl (2E)-2-methylbut-2-enoate [H][C@]12C(COC(=O)[C@](O)(C(C)C)[C@H](C)O)=CC[N+]1([O-])CC[C@H]2OC(=O)/C(C)=C/C cas:72698-57-8 chebi_ontology (1R,7aR)-7-({[(2S,3S)-2,3-dihydroxy-2-isopropylbutanoyl]oxy}methyl)-4-oxido-2,3,5,7a-tetrahydro-1H-pyrrolizin-1-yl (2E)-2-methylbut-2-enoate CHEBI:63917 symphytine N-oxide N-oxidosymphytine MTHHNSCIBYQVSB-FMYLHMKPSA-N InChI=1S/C20H31NO7/c1-6-13(4)18(23)28-16-8-10-21(26)9-7-15(17(16)21)11-27-19(24)20(25,12(2)3)14(5)22/h6-7,12,14,16-17,22,25H,8-11H2,1-5H3/b13-6+/t14-,16+,17+,20-,21?/m0/s1