This invention provides new compounds of formula I, ##STR1## wherein R.sub.1 is hydrogen, halogen of atomic number from 9 to 35 or lower alkyl, R.sub.2 is hydrogen or lower alkyl, each of R.sub.3 and R.sub.4 is hydrogen, or R.sub.3 and R.sub.4 together are oxygen, n is 2, 3 or 4, and A is ethylene or vinylene, Useful as antiphlogistics and anti-arthritics.
This invention provides new compounds of formula I, ##STR1## wherein R.sub.1 is hydrogen, halogen of atomic number from 9 to 35 or lower alkyl, R.sub.2 is hydrogen or lower alkyl, each of R.sub.3 and R.sub.4 is hydrogen, or R.sub.3 and R.sub.4 together are oxygen, N is 2, 3 or 4, and A is ethylene or vinylene, Useful as antiphlogistics and anti-arthritics.