[]. AJ Blake, et al. Intramolecular and intermolecular geometry of thiophenes with oxygen-containing substituents. Acta Crystallogr B. 999 Dec ;55(Pt 6):96-974.
参考文献:
RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY PROVID PHARMACEUTICALS INC. EBRIGHT, Richard H. EBRIGHT, Yon W. SHEN, Juan BACCI, James HIEBEL, Anne-Cecile SOLVIBILE, William SELF, Christopher OLSON, Gary Patent: WO/95 A, Location in patent: Page/Page column 88