GR16973B - METHOD OF MANUFACTURING PRODUCERS OF 1, 3 - DYALKYLOXANTHINS. - Google Patents
METHOD OF MANUFACTURING PRODUCERS OF 1, 3 - DYALKYLOXANTHINS.Info
- Publication number
- GR16973B GR16973B GR560116973A GR560116973A GR16973B GR 16973 B GR16973 B GR 16973B GR 560116973 A GR560116973 A GR 560116973A GR 560116973 A GR560116973 A GR 560116973A GR 16973 B GR16973 B GR 16973B
- Authority
- GR
- Greece
- Prior art keywords
- dialkyl
- residues
- reacted
- derivatives
- alkyl
- Prior art date
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- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
έθοδος δια την παρασκευήν παραγώγων των 1,3-διαλκυλο-ξανθινών, διακρινομένη εκ τούτου, ότι παρασκευάζομεν ενώσεις του γενικού τύπου: [*] ένθα τα R1 και R2 σημαίνουν αλκυλικά ή αλκενυλικά υπόλοιπα, R3και R4 σημαίνουν υδρογόνον ή αλκυλικά ή αλκενυλικά υπόλοιπα, χαμηλού μοριακού βάρους, ή ομού με το άτομον του αζώτου, και εν αλκυλενιμινικόν υπόλοιπον μετά 5-6 δακτυλιοειδών μελών ή το μορφολινικόν υπόλοιπον, R5 σημαίνει υδρογόνον ή εν αλκυλικόν υπόλοιπον χαμηλού μοριακού βάρους και Χ δηλοί οξυγόνον ή θείον, δια τούτου, ότι παράγωγα του καρβαμινικού οξέος, ικανά προς αντίδρασιν, άτινα εις το άζωτον περιέχουν τα υπόλοιπα R3 και R4 ή μόνον το R3, ήτοι τα αλογονίδια του καρβαμινικού οξέος ή αι ισοκυανικαί ενώσεις, φέρονται εις αντίδρασιν μετά τωνδια των μετάλλων των αλκαλίων ενώσεων των 1,3-διαλκυλο-ξανθινών του γενικού τύπου: [*] ή μετ' αυτώντούτων των 1,3-διαλκυλο-ξανθινών, ή δια τούτου, ότι παράγωγα του ανθρακικού οξέος ικανά προς αντίδρασιν ως ο εστήρ του χλωρομυρμηκικού οξέος ή το φωσγένιον, φέρονται εις αντίδρασιν μετά 1,3-διαλκυλοξανθινών του ανωτέρω γενικού τύπου, ή των μετά μετάλλων των αλκαλίων ενώσεων, τούτων, τα δε ούτω λαμβανόμενα, δια καρβονικού οξέος υποκατεστημένα εις την 7-θέσιν, παράγωγα των 1,3-διαλκυλο-ξανθινών φέρονται εις αντίδρασιν μετ' αμινών αίτινες περιέχουντα υπόλοιπα R3 και R4. Process for the preparation of 1,3-dialkyl-xanthine derivatives, characterized in that compounds of the general formula are prepared: [*] in them R1 and R2 mean alkyl or alkenyl residues, R 3 and R 4 mean hydrogen or alkyl or alkenyl residues, of low molecular weight, or together with the nitrogen atom, and in alkyleneimine residue after 5-6 annular members or morpholine residue, R5 stands for hydrogen or alkyl moiety of low molecular weight and X denotes oxygen or sulfur, Therefore, reactive carbamic acid derivatives containing nitrogen in nitrogen contain the residues R3 and R4 or only R3, i.e. carbamic acid halides or isocyanates, are reacted with metal ions while 1,3-dialkyl-xanthines of general formula: [*] or with those of 1,3-dialkyl-xanthines, or thereby, that carbonate derivatives capable of reacting as the ester of chloroformic acid or phosgene, are reacted with 1,3-dialkyloxanthines of the above type or of the alkali metal compounds of these, thus obtained, by carboxylic acid substituted at the 7-position, 1,3-dialkyl-xanthine derivatives are reacted with amine-containing amines containing residues R3 and R4.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GR560116973A GR16973B (en) | 1956-01-26 | 1956-01-26 | METHOD OF MANUFACTURING PRODUCERS OF 1, 3 - DYALKYLOXANTHINS. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GR560116973A GR16973B (en) | 1956-01-26 | 1956-01-26 | METHOD OF MANUFACTURING PRODUCERS OF 1, 3 - DYALKYLOXANTHINS. |
Publications (1)
Publication Number | Publication Date |
---|---|
GR16973B true GR16973B (en) | 1956-06-01 |
Family
ID=36858231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GR560116973A GR16973B (en) | 1956-01-26 | 1956-01-26 | METHOD OF MANUFACTURING PRODUCERS OF 1, 3 - DYALKYLOXANTHINS. |
Country Status (1)
Country | Link |
---|---|
GR (1) | GR16973B (en) |
-
1956
- 1956-01-26 GR GR560116973A patent/GR16973B/en unknown
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