Sentence:  Much more soluble in water than ergotoxine, ergotamine, sensibamine or ergoclavine, and is thought to be the hydroxyisopropylamide of <WSD>lysergic</WSD> acid. 
Meaning of the word marked with <WSD> tags:  (Used in the designation of lysergic acid and lysergic acid diethylamide): produced by hydrolysis from ergot. (from 1930s)