((5R,8R,9R,11R)-9-(3,4,5-三甲氧基苯基)-5,7,8,9-四氢-5,8-甲桥[1,3]二氧杂环戊烯并[4',5':4,5]苯并[1,2-c]氧杂卓-11-基)甲醇 ≥98%(HPLC)