CONFORMATIONAL ANALYSIS OF THE μ-OPIATE RECEPTOR AGONIST FENTANYL DERIVATIVES
Li Yulin; Lian Hongshou; Hu Jianguo; Chen Changying; Chen Jisheng; Xu Xiaojie; Guan Yue; Luo Yu; Tang Youqi
Acta Phys. -Chim. Sin. . 1989, (06): 681 -687 .  DOI: 10.3866/PKU.WHXB19890608