Tetrahedron p. 5681 - 5704 (1994)
Update date:2022-08-03
Topics:
Takao
Nigawara
Nishino
Takagi
Maeda
Tadano
Ogawa
Intramolecular N-alkylation of D-glucose-derived substrate 21E proceeded in an S(N)2' mode smoothly in the presence of a Pd(0) catalyst and n-Bu4NI. The major cyclization product, a 2,6-dialkylated piperidine 22t, was effectively converted into the title alkaloids.
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