65527-61-9Relevant articles and documents
Stereochemical and NMR Reassignment of 6-Norlysergic Acid Diethylamide and 6-Nor-6-allyllysergic Acid Diethylamide
Stachulski, Andrew V.,Nichols, David E.,Scheinmann, Feodor
, p. 30 - 31 (2007/10/03)
Conditions are described for the preparation of a salt of 8β-norlysergic acid diethylamide (8β-nor-LSD) 1 as a single epimer from cyanamide 3, whereas earlier preparations gave mixtures of 1 with the 8α epimer 4 in variable proportions: the earlier NMR assignment of 1 is amended and the N(6) alkylation of 1 and 4 with allyl bromide is discussed.