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DK257559A1958-07-231959-07-18
Process for the preparation of alkali metal or alkaline earth metal salts of 1,2,5-thiadiazole-3,4-dicarboxylic acid.
DK95833C
(en)
Process for the preparation of 21-hemitetrahydrophthalates of 3,20-dioxo-21-hydroxy-pregnane compounds or alkali metal, alkaline earth metal, ammonium or amine salts thereof.
Process for the preparation of β, β-pentamethylene butyrolactone or alkali metal, alkaline earth metal, ammonium or organic amine salts of 3,3-pentamethylene-4-hydroxybutyric acid.