Rosanortriterpene C, a 3, 24-dinor-2, 4-seco-ursane triterpene from the fruits of Rosa laevigata var. leiocapus - Tian, Y; Feng, L; Li, B; Hu, J; Xie, J; Xiao, W; Nie, L; Wu, J (Chem Pharm Bull, 2019)