Astragalus oxyphysus

Harris et al. postulated that (liS, 8aS)-( + )-l-hydroxyindolizidine (109) and (lf ,8aS)-l-hydroxyindolizidine (110) were pivotal intermediates in the biosynthesis of slafi-amine (3) and swainsonine (cf. Section lU.C) in the fungus Rhizoctonia leguminicola (74). Compound 110 was subsequently isolated as e acetate from extracts of the diablo locoweed. Astragalus oxyphysus (75). 

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