Solar photo-thermochemical syntheses of 4-bromo-2,5-substituted oxazoles from N-arylethylamides
作者:Milan Dinda、Supravat Samanta、Suresh Eringathodi、Pushpito K. Ghosh
DOI:10.1039/c3ra47603k
日期:——
isolated yields were in the range 42–82%. Benzylic bromination, followed by O–C bond formation through intramolecular nucleophilic substitution, and a second benzylic bromination followed by HBr elimination, gave the oxazole ring. A third bromination of the ring yielded the final product. The feasibility of synthesizing thiazole derivatives using a similar approach was also demonstrated. During the course
Compounds of Formula (I): in which R1, R2, R7, R8, R9, R10 and A have the meanings given in the specification, are DP2 receptor modulators useful in the treatment of immunologic diseases.
Compounds of formula (I):
in which R
1
, R
2
, R
7
, R
8
, R
9
, R
10
and A have the meanings given in the specification, are DP2 receptor modulators useful in the treatment of immunologic diseases.