| 摘要 |
This invention encompasses a compound of the formula: <IMAGE> wherein: R1 and R2 are the same or different members of the group consisting of 1,1-dimethylethyl, halo, phenyl and substituted phenyl; Alk is straight or branched chain lower alkylene; R4 is hydrogen or lower alkyl; R3 is hydrogen or lower alkyl; or a cycloalkyl group of from 3 to 8 carbon atoms. The formulation of this invention are useful as anti-inflammatory and anti-allergy agents.
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