Crystal structure of akuammicine, an indole alkaloid from Catharanthus roseus

Yahyazadeh, Mahdi GND; Jerz, Gerold GND; Selmar, Dirk GND; Winterhalter, Peter GND; Jones, Peter G. GND

The title compound, C20H22N2O2, an alkaloid isolated from the Madagascar periwinkle, crystallizes in P1 with two independent but closely similar mol­ecules in the unit cell. The mol­ecules are linked into pairs by two N—H⋯O=C hydrogen bonds. The absolute configuration was confirmed by anomalous dispersion effects as S at the 3 and 15 positions, and R at the 7 position.

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Yahyazadeh, Mahdi / Jerz, Gerold / Selmar, Dirk / et al: Crystal structure of akuammicine, an indole alkaloid from Catharanthus roseus. Braunschweig 2017.

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