p. 2219 - 2234
(2007/10/02)2-methylallyl (4-allyl-2-oxoazetidin-1-yl)triphenylphosphoranylideneacetate
acetone
(2-Allyl-4-oxo-azetidin-1-yl)-chloro-acetic acid 2-methyl-allyl ester
2-methylallyl (4-allyl-2-oxoazetidin-1-yl)-1-hydroxyacetate
4-allylazetidin-2-one