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Macrocyclische Spermidinalkaloide aus Maytenus tnossambicensis (KLOTZSCH) BLAKELOCK 12. Mitteilung über Celastraceen‐Inhaltsstoffe
Author(s) -
Wagner Hildebert,
Burghart Joseph
Publication year - 1982
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19820650312
Subject(s) - spermidine , chemistry , stereochemistry , alkaloid , residue (chemistry) , organic chemistry , enzyme
Macrocyclic Spermidine Alkaloids from Maytenus mossambicensis (KLOTZSCH) BLAKELOCK In addition to celabenzine ( 1 ), three new macrocyclic spermidine alkaloids cyclocelabenzine ( 2 ), isocyclocelabenzine ( 3 ) and hydroxyisocyclocelabenzine ( 4 ) have been isolated from Maytenus mossambicensis (klotzsch) blakelock, var. mossambicensis . The three alkaloids show the 13‐membered lactam ring of celabenzine being linked to the benzoyl residue within the spermidine unit. Hydroxyisocyclocelabenzine ( 4 ) is the first known spermidine alkaloid with a hydroxy function at the macrocyclus. The structural elucidation was based mainly on spectroscopic methods, specially 1 H‐ and 13 C‐NMR. spectroscopy.