| 摘要 |
This invention relates to compounds of the formula: wherein R1 and R2 are the same or different members of the group consisting of 1,1-dimethylethyl, halo, phenyl or substituted phenyl; Alk is a lower alkylene; and R3 is hydrogen or lower alkyl; with the limitation that R1 each must be the same and R2 each must be the same, which are useful as anti-inflammatory and anti-allergy agents. |
