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Entandrophragma cylindricum

Sapelin A (69) and sapelin B (70) have been obtained" from Entandrophragma cylindricum (Meliaceae) and are further examples of the group of euphane or tirucallane derivatives which co-occur with, and are likely precursors of, tetranor-triterpenoids (see later). Sapelin A was readily correlated with bourjotinolone A (71 ). Sapelin B reacted with sodium periodate to give the dialdehyde (72) which was transformed successively by sodium amalgam and chromium trioxide into the y-lactone (73) previously obtained from sapelin A and bourjotinolone A. [Pg.172]

Chan W R, Taylor D R Yee T 1970 Triterpenoids from Entandrophragma cylindricum Sprague. Part I. Structures of sapelins A and B. J Chem Soc (C) 311-314... [Pg.795]

Triterpenoids from Entandrophragma cylindricum Sprague. Part II. The... [Pg.95]

See other pages where Entandrophragma cylindricum is mentioned: [Pg.174]    [Pg.200]    [Pg.51]    [Pg.95]    [Pg.174]    [Pg.200]    [Pg.51]    [Pg.95]   
See also in sourсe #XX -- [ Pg.773 ]

See also in sourсe #XX -- [ Pg.5 , Pg.48 , Pg.52 , Pg.53 , Pg.72 ]



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Entandrophragma

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