Classifications

• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07J—STEROIDS
  • C07J53/00—Steroids in which the cyclopenta(a)hydrophenanthrene skeleton has been modified by condensation with a carbocyclic rings or by formation of an additional ring by means of a direct link between two ring carbon atoms, including carboxyclic rings fused to the cyclopenta(a)hydrophenanthrene skeleton are included in this class
  • C07J53/002—Carbocyclic rings fused
  • C07J53/004—3 membered carbocyclic rings
  • C07J53/005—3 membered carbocyclic rings in position 12
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07J—STEROIDS
  • C07J1/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, not substituted in position 17 beta by a carbon atom, e.g. estrane, androstane
  • C07J1/0003—Androstane derivatives
  • C07J1/0014—Androstane derivatives substituted in position 17 alfa, not substituted in position 17 beta
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07J—STEROIDS
  • C07J21/00—Normal steroids containing carbon, hydrogen, halogen or oxygen having an oxygen-containing hetero ring spiro-condensed with the cyclopenta(a)hydrophenanthrene skeleton
  • C07J21/005—Ketals
  • C07J21/008—Ketals at position 17
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07J—STEROIDS
  • C07J71/00—Steroids in which the cyclopenta(a)hydrophenanthrene skeleton is condensed with a heterocyclic ring
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07J—STEROIDS
  • C07J71/00—Steroids in which the cyclopenta(a)hydrophenanthrene skeleton is condensed with a heterocyclic ring
  • C07J71/0005—Oxygen-containing hetero ring
  • C07J71/001—Oxiranes
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
  • Y02P20/00—Technologies relating to chemical industry
  • Y02P20/50—Improvements relating to the production of bulk chemicals
  • Y02P20/582—Recycling of unreacted starting or intermediate materials

Landscapes

• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Steroid Compounds (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=10449399

Family Applications (1)

Country Status (11)

Families Citing this family (1)

• 0
  • BE BE790256D patent/BE790256A/xx unknown
• 1971
  • 1971-10-19 GB GB4864871A patent/GB1410767A/en not_active Expired
• 1972
  • 1972-10-17 CH CH1514072A patent/CH599245A5/xx not_active IP Right Cessation
  • 1972-10-18 NL NL7214125A patent/NL7214125A/xx not_active Application Discontinuation
  • 1972-10-18 DE DE2251098A patent/DE2251098A1/de not_active Ceased
  • 1972-10-18 CA CA154,213A patent/CA989389A/en not_active Expired
  • 1972-10-18 US US00298512A patent/US3816405A/en not_active Expired - Lifetime
  • 1972-10-18 FR FR7236950A patent/FR2157882B1/fr not_active Expired
  • 1972-10-18 HU HUGI181A patent/HU165197B/hu unknown
  • 1972-10-18 SE SE7213433A patent/SE403293B/xx unknown
  • 1972-10-18 JP JP47104372A patent/JPS4848460A/ja active Pending

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