An Efficient Alternative Route To 3,6-Disubstituted-Furo[2,3-d]Pyrimidin-2-One Analogues
摘要:
Copper(I)-catalyzed 5-endo-dig cyclizations of 5-(alkyn-1-yl)uracil derivatives had given poor yields of substituted furo[2, 3]pyrimidin-2-ones unless the uracil ring was substituted at N1 with alkyl or glycosyl groups. This limited flexibility for the synthesis of analogues with varied substituents at N3 and/or C6 of the furo[2, 3]pyrimidin-2-one core has been overcome with 5-(3-hydroxyalkyn-1-yl)uracil compounds with no substituent at N1. Manipulation of the side-chain hydroxyl group gives access to additional furo[2,3- d ]pyrimidin-2-one analogues.
An Efficient Alternative Route To 3,6-Disubstituted-Furo[2,3-d]Pyrimidin-2-One Analogues
摘要:
Copper(I)-catalyzed 5-endo-dig cyclizations of 5-(alkyn-1-yl)uracil derivatives had given poor yields of substituted furo[2, 3]pyrimidin-2-ones unless the uracil ring was substituted at N1 with alkyl or glycosyl groups. This limited flexibility for the synthesis of analogues with varied substituents at N3 and/or C6 of the furo[2, 3]pyrimidin-2-one core has been overcome with 5-(3-hydroxyalkyn-1-yl)uracil compounds with no substituent at N1. Manipulation of the side-chain hydroxyl group gives access to additional furo[2,3- d ]pyrimidin-2-one analogues.
An Efficient Alternative Route To 3,6-Disubstituted-Furo[2,3-<i>d</i>]Pyrimidin-2-One Analogues
作者:Zlatko Janeba、Noha Maklad、Morris J. Robins
DOI:10.1080/10810730500265757
日期:2005.9.1
Copper(I)-catalyzed 5-endo-dig cyclizations of 5-(alkyn-1-yl)uracil derivatives had given poor yields of substituted furo[2, 3]pyrimidin-2-ones unless the uracil ring was substituted at N1 with alkyl or glycosyl groups. This limited flexibility for the synthesis of analogues with varied substituents at N3 and/or C6 of the furo[2, 3]pyrimidin-2-one core has been overcome with 5-(3-hydroxyalkyn-1-yl)uracil compounds with no substituent at N1. Manipulation of the side-chain hydroxyl group gives access to additional furo[2,3- d ]pyrimidin-2-one analogues.