Huge (14-, 21-, 28-, 35-, 56- and 70-membered ring) macrocyclic lactams––a novel family of carbopeptoid-cyclodextrins
摘要:
Hydrogenation of linear omega-azido-pentafluorophenyl esters gives cyclic peptides containing 14-, 21-, 28-, 35-, 56- and 70-membered ring lactams from oligomers derived from epsilon-amino acids in excellent to moderate yields with a lack of racemisation during the cyclisation step. (C) 2003 Elsevier Ltd. All rights reserved.
Cyclo[(6-amino-6-deoxy-d-galactonic acid)4]: a new class of carbopeptoid-cyclodextrin
摘要:
The formation of the 28-membered ring cyclo[(6-amino-6-deoxy-D-galactonic acid)(4)] by cyclisation of a protected open chain fully hydroxylated nylon 6 linear tetramer in modest yield provides the first example of a new class of carbopeptoid-cyclodextrin. (C) 2003 Elsevier Ltd. All rights reserved.