Efficient guanylation of Nα,Nω-difunctionalized polyamines at the secondary amino functions
摘要:
Treatment of N-alpha,N-omega-ditritylated linear and aromatic polyamines and of polyamine conjugates of the alkaloid kukoamine A (KukA) type with N,N'-bis(tert-butoxycarbonyl)thiourea in the presence of Mukaiyama's reagent produced high yields of derivatives guanylated at the secondary amino functions. (C) 2004 Elsevier Ltd. All rights reserved.
Efficient guanylation of Nα,Nω-difunctionalized polyamines at the secondary amino functions
摘要:
Treatment of N-alpha,N-omega-ditritylated linear and aromatic polyamines and of polyamine conjugates of the alkaloid kukoamine A (KukA) type with N,N'-bis(tert-butoxycarbonyl)thiourea in the presence of Mukaiyama's reagent produced high yields of derivatives guanylated at the secondary amino functions. (C) 2004 Elsevier Ltd. All rights reserved.