abstract |
PURPOSE: The title cpds. I (X is trans-vinylene trans-ethylene or bromoethylene; Y is trans-vinylene, or trans-ethylene; R 1 is H or alkyl; R 2 is H, methyl or ethyl; R 3 is a direct bond or alkylene; R 4 is H or alkyl; the dotted line is α-or η-coordination or their mixture), e.g. 5ξ-bromo-6ξ-, 9α-epoxy-11α, 15α-dihydroxyprosto-trans-13-enoic acid methylester. n COPYRIGHT: (C)1978,JPO&Japio |