Lech Ciszewski
Novartis
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Publication
Featured researches published by Lech Ciszewski.
Tetrahedron Letters | 1998
Daqiang Xu; Lech Ciszewski; Tangqing Li; Olijan Repič; Thomas J. Blacklock
Abstract Conditions are disclosed for the formation of either mono- or di-substituted ureas by reductive alkylation, which are readily adaptable to large scale preparations. Dehydrating agents such as acetyl chloride or trimethylsilyl chloride effectively promote the condensation of ureas and aldehydes. Reduction of the adducts affords the mono- or di-substituted ureas in high yields.
Archive | 2008
David Hook; Thomas Ruch; Bernhard Riss; Bernhard Wietfeld; Gottfried Sedelmeier; Matthias Napp; Markus Bänziger; Steven Hawker; Lech Ciszewski; Liladhar Murlidhar Waykole
Organic Process Research & Development | 2003
David Xu; Liladhar Murlidhar Waykole; John Vincent Calienni; Lech Ciszewski; George T. Lee; Wenming Liu; Joanna Szewczyk; Kevin Vargas; Kapa Prasad; Oljan Repic; Thomas J. Blacklock
Tetrahedron Letters | 2004
Lech Ciszewski; Daquiang Xu; Oljan Repic; Thomas J. Blacklock
Archive | 2003
Lech Ciszewski; Liladhar Murlidhar Waykole
Archive | 2008
Shawn D. Britt; Lech Ciszewski; Jiping Fu; Subramanian Karur; Yugang Liu; David Thomas Parker; Mahavir Prashad; Prakash Raman; Mohindra Seepersaud; Rui Zheng; Peichao Lu; Pascal Rigollier; Aregahegn Yifru
Organic Process Research & Development | 2006
Lech Ciszewski; Liladhar Murlidhar Waykole; Mahavir Prashad; Oljan Repic
Organic Process Research & Development | 2008
Yugang Liu; Mahavir Prashad; Lech Ciszewski; Kevin Vargas; Oljan Repic; Thomas J. Blacklock
Tetrahedron | 2009
Edwin Bernard Villhauer; Wen-Chung Shieh; Zhengming Du; Kevin Vargas; Lech Ciszewski; Yansong Lu; Michael J. Girgis; Melissa Lin; Mahavir Prashad
Archive | 2009
Lech Ciszewski; La Cruz Marilyn De; Piotr H. Karpinski; Michael Mutz; Christian Riegert; Caspar Vogel; Ricardo Schneeberger
