A. S.  Kale, Sakle, P. S., Gumaste, V. K., and Deshmukh, A. Rakeeb A., ?4-Formylazetidin-2-one as a useful building block for the formal synthesis of xylo-(2S,3R,4R)-phytosphingosine and threo-(2S,3S)-sphingosine?, Synthesis-Stuttgart , vol. 17, pp. 2631-2636, 2007.

D. Kumar Tiwari, Shaikh, A. Y., Pavase, L. S., Gumaste, V. K., and Deshmukh, A. Rakeeb A., ?Stereoselective synthesis of 3-alkylidene/alkylazetidin-2-ones from azetidin-2,3-diones?, Tetrahedron, vol. 63, no. 11, pp. 2524-2534, 2007.