PROCESSING OF 5-FLUORINE -3-OXO-6-CARBAPROSTAGLANDINE I2 DERIVATIVES

1. Carbacyclin derivatives of the general formula I : see diagramm : EP0098794,P18,F1 wherein R1 is the group OR2 , in which R2 is hydrogen alkyl of 1-4 C-atoms, cycloalkyl of 5-6 C-atoms, phenyl, 1-naphthyl or 2-naphthyl, the group see diagramm : EP0098794,P18,F2 in which aryl is phenyl, 1-naphtyl or 2-naphtyl, each of which is substituted by phenyl, C1 -C2 -alkoxy, chloro or bromo, or R1 is a 5 or 6 membered heterocyclic group with an N-, O- or S-atom, or R1 is the group NHR3 , in which R3 is an organic, carboxylic or sulphonic acid ester group or is the group R2 , A is a -CH2 -CH2 -, trans-CH=CH- or -C-=C-group, W is a free or functionally modified hydroxymethylene group or a free or functionally modified see diagramm : EP0098794,P18,F3 where the OH group may be in the alpha- or beta-configuration, D is the group see diagramm : EP0098794,P18,F4 a straight-chain saturated alkylene group of 1-5 C-atoms or a branched, saturated or a straigth-chain or branche unsaturated alkylen, group of 2-5 C-atoms which can optionally be subsituted by fluorine atoms, n is the number 1, 2 or 3, E is a direct bond, a -C-=C- group or a -CR6 =CR7 - group, where R6 is hydrogen or a C1-4 -alkyl group and R7 is hydrogen, C1-4 -alkyl, chlorine or bromine, R4 is an alkyl group of 1-10 C-atoms, a cycloalkyl group of 3-6 C-atoms, phenyl or 5 or 6 membered heterocyclic group with an N-, O- or S-atom, R5 is a free or functionally modified hydroxy group, and when R2 is hydrogen, its salts with physiologically acceptable bases.