Composition #1: LIANG, XH., ROSS, SA., SOHNI, YR., SAYED, HM., DESAI, HK., JOSHI, BS., PELLETIER, SW. NORDITERPENOID ALKALOIDS FROM THE STEMS AND LEAVES OF DELPHINIUM-AJACIS. journal of natural products, 1991, vol. 54, no. 5, p. 1283–1287. DOI: 10.1021/np50077a007.
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