yohimbane
National Institutes of Health
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An organocatalytic cross-aldol reaction of formaldehyde (formalin) with alkyl aldehydes, followed by the Z-selective Horner…
Nine new alkaloids of the koumine (1-4), humantenine (5-7), and yohimbane (8, 9) types as well as 12 known analogues were…
A yohimbane-type indole alkaloid, ourouparine, was found in Gelsemium sempervirens, and its structure was elucidated by…
The oxidation products of three Rauwolfia alkaloids having yohimbane skeleton, namely, reserpine, rescinnamine and ajmalicine…
DL-Tryptophan in 0,1 N HCl reacts with ninnydrin (triketoindane hydrate) at room temperature to give a brown precipitate; washing…
A study of the alkaloidal content of trunk-barks of Pausinystalia macroceras (K. Schum.) Pierre, Rubiaceae, resulted in the…