Synthesis of pyrimidinyl arylglycines through subsequent Mitsunobu and Petasis reactions
摘要:
The synthesis of highly functionalized pyrimidinyl arylglycines is presented. The highlight in our synthetic sequence includes selective O-alkylation of 2-(benzylsulfanyl)-4(3H)-pyrimidinones with N-Boc beta-aminoalcohols under Mitsunobu conditions, Petasis reaction with glyoxylic acid and phenylboronic acid and nucleophilic ipso-substitution of the activated sulfur with morpholine. The unexpected spontaneous Smiles rearrangement of several pyrimidinyl amines is also discussed. (c) 2008 Elsevier Ltd. All rights reserved.
Synthesis of pyrimidinyl arylglycines through subsequent Mitsunobu and Petasis reactions
作者:David Font、Montserrat Heras、José M. Villalgordo
DOI:10.1016/j.tet.2008.03.035
日期:2008.5
The synthesis of highly functionalized pyrimidinyl arylglycines is presented. The highlight in our synthetic sequence includes selective O-alkylation of 2-(benzylsulfanyl)-4(3H)-pyrimidinones with N-Boc beta-aminoalcohols under Mitsunobu conditions, Petasis reaction with glyoxylic acid and phenylboronic acid and nucleophilic ipso-substitution of the activated sulfur with morpholine. The unexpected spontaneous Smiles rearrangement of several pyrimidinyl amines is also discussed. (c) 2008 Elsevier Ltd. All rights reserved.