ＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅｏｆ３－Ｍｅｔｈｙｌ－９－（Ｏ，Ｏ－Ｄｉｅｔｈｙｌｐｈｏｓｐｈｏｒｙｌ）Ｍｅｔｈｙｌ－１，６，１２－Ｔｒｉｏｘａ－９－Ａｚａ－５－Ｇｅｒｍａｓｐｉｒｏ［４，７］Ｄｏｄｅｃａｎ－２－Ｏｎｅ￥ＣｈｅｎＲｕ－ｙｕ；ＬｉｕＬｕ... Crystal Structure of 3-Methyl-9- (O, O-Diethylphosphoryl) Methyl-1,6,12-Trioxa-9-Aza-5-Germaspiro [4,7] Dodecan-2-O......