𝔖 Bobbio Scriptorium
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Biosynthetic derivation of hasubanonine and protostephanine from the 1-benzylisoquinoline system

✍ Scribed by Alan R. Battersby; Akwasi Minta; Anthony P. Ottridge; James Staunton

Book ID
104244122
Publisher
Elsevier Science
Year
1977
Tongue
French
Weight
194 KB
Volume
18
Category
Article
ISSN
0040-4039

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✦ Synopsis

Few alkaloids have been more recalcitrant in yielding positive information concerning their biosynthesis than have protostephanine (1) and hasubanonine (2) and this secrecy increased their fascination. Already in the late nineteen sixties, tracer experiments on the parent plant, Stephania japonica Miers, had given positive incorporations of labelled tyrosine ' into the alkaloids.

Degradation showed 2 that both skeletons (1) and ( 2) are built from two Ar-C-C

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