81874-23-9Relevant academic research and scientific papers
ALKALOIDS OF SARCOCAPNOS CRASSIFOLIA SUBSP. SPECIOSA
Castedo, Luis,Lopez, Susana,Lera, Angel Rodriguez De,Villaverde, Carmen
, p. 251 - 258 (2007/10/02)
Thirty-four benzylisoquinoline alkaloids were isolated from the aerial parts of Sarcocapnos crassifolia subsp. speciosa.Twenty-seven of them were identified as the following known alkaloids.Benzophenanthridines: 8-hydroxymethyl dihydrosanguinarine, (+)-chelidonine and oxysanguinarine.Ribasines: (+)-ribasine.Aporphinoids: (+)-glaucine, (+)-N-methyl laurotetanine, (+)-isoboldine, O-methyl atheroline and corunnine.Morphinandienones: (-)-pallidine and (+)-salutaridine. 1-Benzylisoquinolines: (+)-crassifoline.Protopines: protopine.Protoberberines: (-)-scoulerine.Cularines and related compounds: (+)-cularine, (+)-cularidine, (+)-celtisine, (+)-breoganine, (+)-sarcocapnidine, (+)-claviculine, oxocularine, oxocompostelline, oxosarcocapnidine, oxosarcophylline, secocularine and secocularidine.Dibenzopyranazepines: (-)-clavizepine.The remainder were seven new cularine-type alkaloids which we named (+)-enneaphylline, (+)-sarcophylline, (+)-norsarcocapnidine, oxocularidine, secosarcocapnidine, norsecocularidine and norsecosarcocapnidine.Their structures have been elucidated by spectroscopic and chemical methods. - Keywords: Sarcocapnos crassifolia subsp. speciosa; Fumariaceae; alkaloid content of aerial parts; 1-benzylisoquinoline alkaloids; novel cularines.
NEW ISOQUINOLINE ALKALOIDS FROM CORYDALIS CLAVICULATA
Guinaudeau, Helene,Allais, Daovi P.
, p. 107 - 111 (2007/10/02)
The alkaloids (+)-crassifoline (6), (+)-claviculine (9) and (+)-norcularidine (12) have been obtained from Corydalis claviculata. (+)-Crassifoline possesses the S configuration at C-1.The phenolic groups in (+)-claviculine are at C-7 and C-3'. (+)-Norcularidine is a new natural product.
NEW PHENOLIC ISOCULARINE AND BENZYLISOQUINOLINE ALKALOIDS AND THEIR BIOGENETIC RELATIONSHIP
Boente, J.M.,Castedo, L.,Cuadros, R.,Lera, A. Rodriguez de,Saa, J.M.,et al.
, p. 2303 - 2306 (2007/10/02)
The first three phenolic isocularines and the first diphenolic 7,8,3',4'-tetraoxygenated tetrahydrobenzylisoquinoline were isolated from Sarcocapnos crassifolia.A pathway for the biogenesis of cularine is considered.
