“…Cholesterol ( 1 ), a biological endogenous substance, has shown a variety of antitumor, antioxidant, anti-inflammatory, and insecticide activities [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 ]. Cinnamic acid ( Figure 1 ), as a main component of Cinnamomum cassia Presl, has displayed a range of pharmaceutical and agricultural activities [ 11 , 12 , 13 ].…”