| 摘要 |
A compound of formula (I): <IMAGE> (I) or a salt, ester or amide thereof, in which Y is a group -O(CH2)m-, -(CH2)m- or -CH=CH- where m is an integer of from 1 to 5 n is an integer of from 4 to 14 X represents a double or triple bond, and each of A and B represents hydrogen when X is a double bond, or both A and B are absent when X is a triple bond, is useful in the treatment of allergic diseases.
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