| 摘要 |
The invention concerns novel 1,3-dioxane ethers of the formula I, wherein R1 includes alkyl, cycloalkyl, phenyl and phenyalkyl, R2 and R3 include hydrogen and alkyl, n is 1 or 2, m is 2, 3 or 4, p is zero, 1 or 2, and Z is carboxy or 1(H)-tetrazol-5-yl, and pharmaceutically acceptable salts thereof, for use in conjunction with their pharmaceutical compositions in the treatment of certain pulmonary and/or vascular disorders. The invention also describes various processes and intermediates for the manufacture of the novel compounds.
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