GB1464562A - Disubstituted xanthone carboxylic acid compounds - Google Patents

Disubstituted xanthone carboxylic acid compounds

Info

Publication number
GB1464562A
GB1464562A GB4009076A GB4009076A GB1464562A GB 1464562 A GB1464562 A GB 1464562A GB 4009076 A GB4009076 A GB 4009076A GB 4009076 A GB4009076 A GB 4009076A GB 1464562 A GB1464562 A GB 1464562A
Authority
GB
United Kingdom
Prior art keywords
compounds
alkyl
formulμ
carboxylic acid
acid compounds
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
GB4009076A
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.)
Syntex USA LLC
Original Assignee
Syntex USA LLC
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
Priority claimed from US05431794 external-priority patent/US3894049A/en
Application filed by Syntex USA LLC filed Critical Syntex USA LLC
Publication of GB1464562A publication Critical patent/GB1464562A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C323/00Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D311/00Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D311/78Ring systems having three or more relevant rings
    • C07D311/80Dibenzopyrans; Hydrogenated dibenzopyrans
    • C07D311/82Xanthenes
    • C07D311/84Xanthenes with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached in position 9
    • C07D311/86Oxygen atoms, e.g. xanthones

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Pyrane Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1464562 5,7 - Disubstituted xanthone - 2- carboxylic acids SYNTEX (USA) Inc 24 Dec 1974 [8 Jan 1974] 40090/76 Divided out of 1464561 Heading C2C The invention comprises compounds of the formula wherein one R<SP>1</SP> is OH and the other is RS-, RSO- or RSO 2 -R is C 1 -C 5 alkyl or C 3 -C 5 cycloalkyl and R<SP>71</SP> is H or C 1 -C 5 alkyl. They may be obtained by treating the corresponding alkoxy compounds of the formulµ with HI or HBr in the presence of a solvent to give compounds of the formulµ wherein R<SP>9</SP> and R<SP>13</SP> are C 1 -C 5 alkyl or C 3 -C 5 cycloalkyl; and optionally esterifying these compounds with an alkyl halide to give esters of the formulµ and oxidizing any of these compounds as described in Specification 1,398,724 to the required sulphinyl or sulphonyl compounds. The products are useful intermediates in the preparation of pharmaceutically active xanthones.
GB4009076A 1974-01-08 1974-12-24 Disubstituted xanthone carboxylic acid compounds Expired GB1464562A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05431794 US3894049A (en) 1972-06-05 1974-01-08 Disubstituted xanthone carboxylic acid compounds

Publications (1)

Publication Number Publication Date
GB1464562A true GB1464562A (en) 1977-02-16

Family

ID=23713448

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1296674A Expired GB1464561A (en) 1974-01-08 1974-12-24 Disubstituted xanthone carboxylic acid compounds
GB4009076A Expired GB1464562A (en) 1974-01-08 1974-12-24 Disubstituted xanthone carboxylic acid compounds

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1296674A Expired GB1464561A (en) 1974-01-08 1974-12-24 Disubstituted xanthone carboxylic acid compounds

Country Status (14)

Country Link
JP (1) JPS50126667A (en)
AT (1) AT339297B (en)
AU (1) AU7571774A (en)
BE (1) BE823030R (en)
DE (1) DE2461059A1 (en)
DK (1) DK645674A (en)
ES (1) ES433626A2 (en)
FI (1) FI334874A (en)
FR (1) FR2256755B2 (en)
GB (2) GB1464561A (en)
NL (1) NL7500218A (en)
NO (1) NO744506L (en)
SE (1) SE7415844L (en)
ZA (1) ZA747671B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136227A (en) * 1983-03-07 1984-09-12 Nat Res Dev Direct Current Circuit Breakers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136227A (en) * 1983-03-07 1984-09-12 Nat Res Dev Direct Current Circuit Breakers

Also Published As

Publication number Publication date
ZA747671B (en) 1976-07-28
JPS50126667A (en) 1975-10-04
ES433626A2 (en) 1977-07-01
AU7571774A (en) 1976-05-27
GB1464561A (en) 1977-02-16
AT339297B (en) 1977-10-10
SE7415844L (en) 1975-07-09
ATA9475A (en) 1977-02-15
NO744506L (en) 1975-08-04
DE2461059A1 (en) 1975-07-17
BE823030R (en) 1975-06-06
FI334874A (en) 1975-07-09
NL7500218A (en) 1975-07-10
FR2256755B2 (en) 1978-06-30
FR2256755A2 (en) 1975-08-01
DK645674A (en) 1975-09-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee