| 摘要 |
A compound of formula (I) and pharmaceutical acceptable salts, solvates, stereoisomers and prodrugs thereof, in isolation or in mixture, wherein, independently at each occurrence: R<1 >and R<2 >are selected from hydrogen, oxygen so as to form nitro or oxime, amino, sulfate, and sulfonic acid, and organic groups having 1-30 carbons and optionally containing 1-6 heteroatoms selected from nitrogen, oxygen, phosphorous, silicon, and sulfur, where R<1 >and R<2 >may, together with the N to which they are both bonded, form a heterocyclic structure that may be part of an organic group having 1-30 carbons and optionally containing 1-6 heteroatoms selected from nitrogen, oxygen and silicon, and where R<1 >may be a 2, or 3 atom chain to numeral 2 so that -N-R<1>- forms part of a fused bicyclic structure to ring A; R<3 >and R<4 >are selected from direct bonds to 6 and 7 respectively so as to form carbonyl groups, hydrogen, or a protecting group such that R<3 >and/or R<4 >is part of hydroxyl or carbonyl protecting group; numerals 1 through 17 each represent a carbon having substitution as described. The compounds may be formulated into pharmaceutical compositions, and used in the treatment and/or prevention of various conditions, including inflammation, asthma, an allergic disease, chronic obstructive pulmonary disease, atopic dermatitis, solid tumors, AIDS, ischemia, and cardiac arrhythmias.
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