6-O-methyl-9-deoxo-9-dihydro-9a-aza-9a-homoerythromycin A
348125-79-1
C38H72N2O12
748.996
反应信息
作为反应物:
描述:
在
盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 作用下,
以
氯仿 为溶剂,
反应 5.0h,
以43%的产率得到9a,11-O-(N'-benzylcarbonimidoyl)-6-O-methyl-9-deoxo-9a-aza-9a-homoerythromycin A
参考文献:
名称:
Novel 9a,11-bridged azalides: One-pot synthesis of N′-substituted 2-imino-1,3-oxazolidines condensed to an azalide aglycone
摘要:
An efficient one-pot method for the synthesis of novel 9a,11-bridged 15-membered 9a-aza-9-deoxo-9a-homoerythromycin A and its 6-O-methyl analogue has been developed. The novel bicyclic azalide scaffold is characterized by an N'-substituted-2-imino-1,3-oxazolidine moiety bound to a macrolactone ring between positions 9a and 11. Removal of the cladinose sugar from the starting compounds allows easy preparation of a small series of such bicyclic 3-keto and 3,6-hemiketal azalide derivatives. A mechanism for the formation of N'-substituted-2-imino-1,3-oxazolidines is discussed. Antibacterial properties of the prepared compounds were evaluated. (C) 2010 Elsevier Ltd. All rights reserved.
Novel 9a,11-bridged azalides: One-pot synthesis of N′-substituted 2-imino-1,3-oxazolidines condensed to an azalide aglycone
摘要:
An efficient one-pot method for the synthesis of novel 9a,11-bridged 15-membered 9a-aza-9-deoxo-9a-homoerythromycin A and its 6-O-methyl analogue has been developed. The novel bicyclic azalide scaffold is characterized by an N'-substituted-2-imino-1,3-oxazolidine moiety bound to a macrolactone ring between positions 9a and 11. Removal of the cladinose sugar from the starting compounds allows easy preparation of a small series of such bicyclic 3-keto and 3,6-hemiketal azalide derivatives. A mechanism for the formation of N'-substituted-2-imino-1,3-oxazolidines is discussed. Antibacterial properties of the prepared compounds were evaluated. (C) 2010 Elsevier Ltd. All rights reserved.