- NOVEL TRICYCLIC SPIRODERIVATIVES AS MODULATORS OF CHEMOKINE RECEPTOR ACTIVITY
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The invention provides compounds of formula (I) wherein m, R1, n, R2, q, X, Y, Z, R3, R4, R5, R6, R7, R8, t and R9 are as defined in the specification, proc
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Page/Page column 37
(2010/02/11)
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- The conversion of mixed N,O-diacylated 2-aminophenols to 2-substituted benzoxazoles
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When N,O-diacylated 2-aminophenols that have different acyl substituents on nitrogen and oxygen are treated with p-toluenesulfonic acid in refluxing xylenes, mixtures of benzoxazoles are produced. The major product is the benzoxazole in which the substituent at the 2-position is derived from the acyl group on nitrogen. This product may arise from an unusual case of acid- mediated neighboring amido-group assisted hydrolysis.
- DeLuca, Mark R.,Taraporewala, Irach B.,Kerwin, Sean M.
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p. 979 - 982
(2007/10/03)
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