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Macrocyclische Spermidinalkaloide aus Maytenus tnossambicensis (KLOTZSCH) BLAKELOCK 12. Mitteilung über Celastraceen-Inhaltsstoffe

✍ Scribed by Hildebert Wagner; Joseph Burghart

Book ID
102857894
Publisher
John Wiley and Sons
Year
1982
Tongue
German
Weight
813 KB
Volume
65
Category
Article
ISSN
0018-019X

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✦ Synopsis

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.

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