Tetrahedron Letters p. 1951 - 1954 (1989)
Update date:2022-08-16
Topics:
Cartier, Dominique
Ouahrani, Mohamed
Levy, Jean
The oxindolic methylketone 7 was cyclized in one step to the hexacyclic ketolactam 9 with acid. (+/-)-Aspidofractinine 23 was prepared by sequential reduction of 9.The model oxindolic methylketone 11, when reacted with acid, gave compounds 12 and 17a.b.
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(1996)
