GB1218998A - Process for preparing 15-hydroxy-9-oxoprost-13-enoic acid - Google Patents

Process for preparing 15-hydroxy-9-oxoprost-13-enoic acid

Info

Publication number
GB1218998A
GB1218998A GB5539568A GB5539568A GB1218998A GB 1218998 A GB1218998 A GB 1218998A GB 5539568 A GB5539568 A GB 5539568A GB 5539568 A GB5539568 A GB 5539568A GB 1218998 A GB1218998 A GB 1218998A
Authority
GB
United Kingdom
Prior art keywords
hydroxy
acid
oxoprost
enoic acid
alkanol
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
GB5539568A
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.)
Wyeth Canada Inc
Original Assignee
Ayerst Mckenna and Harrison 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 Ayerst Mckenna and Harrison Inc filed Critical Ayerst Mckenna and Harrison Inc
Publication of GB1218998A publication Critical patent/GB1218998A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C405/00Compounds containing a five-membered ring having two side-chains in ortho position to each other, and having oxygen atoms directly attached to the ring in ortho position to one of the side-chains, one side-chain containing, not directly attached to the ring, a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, and the other side-chain having oxygen atoms attached in gamma-position to the ring, e.g. prostaglandins ; Analogues or derivatives thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,218,998. Prostanoic acid derivatives and related compounds. AYERST McKENNA & HARRISON Ltd. 21 Nov., 1968 [25 Nov., 1967], No. 55395/68. Heading C2C. 15 - Hydroxy - 9 - oxoprost - 13 - enoic acid and its novel C 1-4 alkyl esters are prepared (a) for the esters, by hydrolysis of the corresponding 15-C 1-4 alkanoates with an alkali metal carbonate in an aqueous C 1-4 alkanol; or (b) for the acid, by hydrolysis of the esters or their 15-C 1-4 alkanoates with an alkali or alkaline earth metal hydroxide in an aqueous C 1-4 alkanol. The starting materials are in turn prepared by esterifying 9-hydroxy-15-oxoprost- 13-enoic acid with an alkanol in the presence of an acid, etherifying the ester to yield the corresponding 9-ether, reducing this with an alkali metal borohydride in a solvent to give the 15-ol, converting this to its acylate, removing the etherifying group by acid hydrolysis, and oxidizing the product. Novel intermediates are methyl 9-hydroxy-15-oxoprost-13-enoate and its tetrahydropyranyl and p-methoxy benzyl ethers, the same ethers of methyl 9,15-dihydroxyprost-13-enoic acid and of the corresponding 15- acetoxy compound, and methyl 15-acetoxy-9- hydroxyprost-13-enoic acid and the corresponding 9-oxo compound. The 15-hydroxy and -alkanoyloxy compounds are a mixture of the alpha and beta isomers. 15 - Hydroxy - 9 - oxoprost - 13 - enoic acid and its alkyl esters are hypotensive agents, and they may be made up into pharmaceutical compositions with suitable carriers. Reference has been directed by the Comptroller to Specification 1,097,533.
GB5539568A 1967-11-25 1968-11-21 Process for preparing 15-hydroxy-9-oxoprost-13-enoic acid Expired GB1218998A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA6110 1967-11-25

Publications (1)

Publication Number Publication Date
GB1218998A true GB1218998A (en) 1971-01-13

Family

ID=4083920

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5539568A Expired GB1218998A (en) 1967-11-25 1968-11-21 Process for preparing 15-hydroxy-9-oxoprost-13-enoic acid

Country Status (6)

Country Link
CA (1) CA886591A (en)
CH (1) CH558771A (en)
DE (1) DE1810824A1 (en)
GB (1) GB1218998A (en)
NL (1) NL6816804A (en)
SE (1) SE357961B (en)

Also Published As

Publication number Publication date
CA886591A (en) 1971-11-23
DE1810824A1 (en) 1969-07-10
SE357961B (en) 1973-07-16
CH558771A (en) 1975-02-14
NL6816804A (en) 1969-05-28

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