abstract |
The invention relates to an intermediate for preparing 6-substituted phenoxychroman carboxylic acid derivatives. The present invention relates to a compound of formula I, wherein A 1 , A 2 , W, L, G, R 7a , R 7b , R 8 , R 9 and R 10 have the meanings given in the description, and the compound is useful for treating immune diseases DP2 receptor modulator. The invention also relates to intermediates for the preparation of compounds of formula I. |