1: With p-methylbenzenesulfonyl (tosylate); tert-butylamine in various solvent(s) 0.25 h; 2: With trifluoroacetic acid in various solvent(s) T=70°C; Further stages. Title compound not separated from byproducts.;
参考文献
Yin, Jingjun; Xiang, Bangping; Huffman, Mark A.; Raab, Conrad E.; Davies, Ian W.
Journal of Organic Chemistry, 2007 , vol. 72, # 12 p. 4554 - 4557