Bhesa archboldiana

A chemotaxonomic study of the pyrrolizidine alkaloids present in the subfamilies Heliotropioideae and Boraginoideae has been carried out, using t.l.c.19 No alkaloids were identified. Lycopsamine (41) and 9-angelylretronecine have been isolated from Messerschmidia sibirica.20 9-Angelylretronecine has only been found previously in Bhesa archboldiana (Celastraceae).21 Heliotrine A-oxide is present in Heliotropium ramosissimum.22 A full paper describing the alkaloids identified in H. curassavicum... 

Bhesa archboldiana (Merr. Perry) Ding Hou Busu R, PNG L, B s [19, 20]... 

The major alkaloid of the bark of Bhesa archboldiana (Merr. and Perry) Ding Hou (Kurrimia archboldiana Merr. and Perry), a large rainforest tree indigenous to New Guinea, is 9-angeloylretronecine N-oxide (14),11 a previously unrecorded alkaloid the parent tertiary base also appears to be present. 

Calycanthine co-occurs68 with pyrrolizidine alkaloids in Bhesa archboldiana. The absorption and c.d. spectra of calycanthine and caracurine II have been extended69 to 53 000 cm-1 theoretical curves match the experimental ones moderately well. 

Bhesa archboldiana (Merrill Perry) Ding Hou (Kurrimia arch-holdiana Merrill Perry) (Celastraceae)... 

Culvenor, C. C. J., S. R. Johns, J. A. Lamberton, and L. W. Smith The Isolation of Calycanthine and Pyrrolizidine Alkaloids from Bhesa archboldiana (Celastraceae) An Unusual Co-occurrence of Alkaloidal Types. Aust. J. Chem. 23, 1279 (1970). 

---