Preparation of derivatives of betulinol isolated from the outer bark of birch, Betula verrucosa, Ehrh : 1, Preparation of Betulinol-28-(N,N-bis-2-hydroxyethyl)-carbamate and Betulinol-3,28-bis-(N,N-bis-2-hydroxyethyl)-carbamate
Preparation of derivatives of betulinol isolated from the outer bark of birch, Betula verrucosa, Ehrh : 1, Preparation of Betulinol-28-(N,N-bis-2-hydroxyethyl)-carbamate and Betulinol-3,28-bis-(N,N-bis-2-hydroxyethyl)-carbamate
Preparation of derivatives of betulinol isolated from the outer bark of birch, Betula verrucosa, Ehrh : 1, Preparation of Betulinol-28-(N,N-bis-2-hydroxyethyl)-carbamate and Betulinol-3,28-bis-(N,N-bis-2-hydroxyethyl)-carbamate
Preparation of derivatives of betulinol isolated from the outer bark of birch, Betula verrucosa, Ehrh : 1, Preparation of Betulinol-28-(N,N-bis-2-hydroxyethyl)-carbamate and Betulinol-3,28-bis-(N,N-bis-2-hydroxyethyl)-carbamate