“…Among most common phytosterols, stigmasterol (3β,20R,22E,24S)-stigmasta-5,22-dien-3-ol (5) and β-sitosterol (3β,20R,24R)-stigmast-5-en-3-ol (6) were employed. While the former was already tested against cancer in natural form (Ali et al 2015, Ghosh et al 2011, the latter showed effect on tumor cells in ester form (Rathee et al 2012).…”