74164-84-4Relevant academic research and scientific papers
Confirmation of the stereochemistry of 7β-angelyl-1-methylene-8α-pyrrolizidine
Logie, Catherine G.,Liddell, J. Richard,Kaye, Perry T.
, p. 72 - 74 (2007/10/03)
The (7R,8R) stereochemistry of naturally occurring 7β-angelyl-1-methylene-8α-pyrrolizidine 1 was confirmed by subjecting a mixture of a synthetic standard and the natural product to various chiral differentiating techniques. The synthetic 7β-angelyl-1-methylene-8α-pyrrolizidine 1 was prepared from enantiomerically pure retronecine 3.
An enantiocontrolled synthesis of pyrrolizidines, (-)-platynecine and (-)-hadinecine
Kang, Sung Ho,Kim, Geun Tae,Yoo, Yong Sang
, p. 603 - 606 (2007/10/03)
Trisubstituted allylic alcohols 13 and 14 have been converted into a single isomeric trans-oxazoline 16 via an intramolecular iodoamidation of the corresponding trichloroacetimidates, which have been elaborated into (-)-platynecine 1 and(-)-hadinecine 2 via a common intermediate pyrrolizidine.
