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Über die Struktur des Kopsins. (Vorläufige Mitteilung)
Author(s) -
Govindachari T. R.,
Pai B. R.,
Rajappa S.,
Viswanathan N.,
Kump W. G.,
Nagarajan K.,
Schmid H.
Publication year - 1962
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19620450410
Subject(s) - chemistry , stereochemistry , alkaloid
Structure X:R = H 2 has been derived for the alkaloid kopsine from chemical and spectroscopic evidence and by a correlation with the alkaloid pleiocarpine (IX: R = R 1 = COOCH 3 ; R 2 = H 2 ). Structures XI: R = H 2 ; R 1 = OH; R 2 = H and XI: R = H 2 ; R 1 = H; R 2 = OH, respectively, represent dihydrokopsine‐A and dihydrokopsine‐B.