e.g. Filippa Pettersson or Cancer Res. 75(6) , 1102-12, (2015) or 10.1002/anie.201600521
Journal of combinatorial chemistry
Application of the Modified Pictet− Spengler Cyclization Reaction for the Preparation of an Imidazopyrazine Ring: Synthesis of new Pyrido-and Pyrimido- …
S Sharma, B Kundu
Index: Shrestha, Kedar Shanker; Honda, Kiyoshi; Asami, Masatoshi; Inoue, Seiichi Bulletin of the Chemical Society of Japan, 1999 , vol. 72, # 1 p. 73 - 83