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Schefferomitra subaequalis

Alkaloid Y, isolated from the bark of Schefferomitra subaequalis (Annonaceae), has now been shown to correspond to the known aristolactam BII (cepharanone-B) (72).51... [Pg.129]

Anolobine VIII 4 Guatteria tonduzii Monodora tenuifolia Schefferomitra subaequalis Xylopia papuana... [Pg.249]

Schefferomitra subaequalis Xylopia buxifolia Xylopia discreta Xylopia langsdoiffiana Artabotrys venustus Desmos tiebaghiensis Fissistigma bracteolatum Fissistigma glaucescens... [Pg.268]

Related with the previous synthesis, an FC aminoalkylation through a tosyliminium ion allowed the total synthesis of ( )-schefferine (Scheme 2.6) [7], which is a phenolic alkaloid isolated from Schefferomitra subaequalis, a liana climber found on rain forest trees. The known amidal 41 was treated at -78°C with 4-allyl-l,2-dimethoxybenzene (42) and BF Et O to regioselectively give 43 in 88% yield. The allylic chain of the aromatic ring was then modified to furnish alcohol 44, which after deprotection of the tosylamide was cyclized via a Mitsunobu reaction to give ( )-schefferine (46). [Pg.37]

See other pages where Schefferomitra subaequalis is mentioned: [Pg.103]    [Pg.296]    [Pg.9]    [Pg.133]    [Pg.228]    [Pg.248]    [Pg.248]    [Pg.251]    [Pg.254]    [Pg.259]    [Pg.278]    [Pg.280]    [Pg.312]    [Pg.103]    [Pg.296]    [Pg.9]    [Pg.133]    [Pg.228]    [Pg.248]    [Pg.248]    [Pg.251]    [Pg.254]    [Pg.259]    [Pg.278]    [Pg.280]    [Pg.312]   
See also in sourсe #XX -- [ Pg.296 ]

See also in sourсe #XX -- [ Pg.9 ]

See also in sourсe #XX -- [ Pg.228 , Pg.552 ]



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