GB1164645A - 2,2-Spiro-m-dioxano-Steriods - Google Patents

2,2-Spiro-m-dioxano-Steriods

Info

Publication number
GB1164645A
GB1164645A GB3827868A GB3827868A GB1164645A GB 1164645 A GB1164645 A GB 1164645A GB 3827868 A GB3827868 A GB 3827868A GB 3827868 A GB3827868 A GB 3827868A GB 1164645 A GB1164645 A GB 1164645A
Authority
GB
United Kingdom
Prior art keywords
steroids
dioxano
spiro
oct
carbon atoms
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3827868A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STWB Inc
Original Assignee
Sterling Drug Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sterling Drug Inc filed Critical Sterling Drug Inc
Publication of GB1164645A publication Critical patent/GB1164645A/en
Expired legal-status Critical Current

Links

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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J43/00—Normal steroids having a nitrogen-containing hetero ring spiro-condensed or not condensed with the cyclopenta(a)hydrophenanthrene skeleton
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J75/00—Processes for the preparation of steroids in general

Landscapes

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

Abstract

1,164,645. 2,2-Spiro - m - dioxano - steroids. STERLING DRUG Inc. 17 Oct., 1966 [22 Oct., 1965], No. 38278/68. Divided out of 1,164,644. Heading C2U. Novel steroids of the partial formula (wherein only the 2- and 3-positions of the steroid nucleus are shown, the steroid moiety having from 17 to 23 carbon atoms exclusive of ester radicals and substituents at the 2-position and being a member of the estrane, 18-norestrane, androstane, etiocholane, cholane, pregnane or allopregnane series) and their 4<SP>1</SP>-acylates derived from carboxylic acids of 1 to 12 carbon atoms, are prepared by reaction of the corresponding 2 - hydroxymethylene - 3 - keto - steroids with formaldehyde, and, when required, acylation of the products. Keto groups may be protected by ketal formation and released by hydrolysis.
GB3827868A 1965-10-22 1966-10-17 2,2-Spiro-m-dioxano-Steriods Expired GB1164645A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US50239465A 1965-10-22 1965-10-22

Publications (1)

Publication Number Publication Date
GB1164645A true GB1164645A (en) 1969-09-17

Family

ID=23997621

Family Applications (4)

Application Number Title Priority Date Filing Date
GB3828068A Expired GB1164647A (en) 1965-10-22 1966-10-17 2,2-Spiro-Pyrazolinyl-Steroids
GB4638366A Expired GB1164644A (en) 1965-10-22 1966-10-17 2,2-Ethylene-Steroids
GB3827968A Expired GB1164646A (en) 1965-10-22 1966-10-17 2-Methylene-Steroids
GB3827868A Expired GB1164645A (en) 1965-10-22 1966-10-17 2,2-Spiro-m-dioxano-Steriods

Family Applications Before (3)

Application Number Title Priority Date Filing Date
GB3828068A Expired GB1164647A (en) 1965-10-22 1966-10-17 2,2-Spiro-Pyrazolinyl-Steroids
GB4638366A Expired GB1164644A (en) 1965-10-22 1966-10-17 2,2-Ethylene-Steroids
GB3827968A Expired GB1164646A (en) 1965-10-22 1966-10-17 2-Methylene-Steroids

Country Status (1)

Country Link
GB (4) GB1164647A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6209176B1 (en) * 1997-11-03 2001-04-03 National Molding Corporation Zipper pull cord fastener

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6209176B1 (en) * 1997-11-03 2001-04-03 National Molding Corporation Zipper pull cord fastener

Also Published As

Publication number Publication date
GB1164646A (en) 1969-09-17
GB1164647A (en) 1969-09-17
GB1164644A (en) 1969-09-17

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees