P. K.  Upadhyay, Prasad, R., Pandey, M., and Kumar, P., ?Facile synthesis of 5,6-dihydro-5-hydroxy-2(1H)-pyridone?, Tetrahedron Letters, vol. 50, no. 20, pp. 2440-2442, 2009.

P. K.  Upadhyay and Kumar, P., ?Novel synthesis of coumarins employing triphenyl(alpha-carboxymethylene)-phosphorane imidazolide as a C-2 synthon?, Tetrahedron Letters, vol. 50, no. 2, pp. 236-238, 2009.

P. K.  Upadhyay and Kumar, P., ?Concise synthesis of (2S,3S,4S)-2-(Hydroxymethyl)pyrrolidine-3,4-diol (LAB1)?, Synthesis-Stuttgart, no. 18, pp. 3063-3066, 2010.

P. K.  Upadhyay and Kumar, P., ?Short and efficient synthesis of (S)-(+)-2-(Hydroxymethyl)-6-piperidin-2-one?, Synthesis-Stuttgart, no. 15, pp. 2512-2514, 2010.

K.  Show, Upadhyay, P. K., and Kumar, P., ?Asymmetric dihydroxylation route to (-)-bulgecinine?, Tetrahedron-Asymmetry, vol. 22, no. 11, pp. 1234-1238, 2011.