BE777544A - Derives de chromone-aldehyde. - Google Patents

Derives de chromone-aldehyde.

Info

Publication number
BE777544A
BE777544A BE777544A BE777544A BE777544A BE 777544 A BE777544 A BE 777544A BE 777544 A BE777544 A BE 777544A BE 777544 A BE777544 A BE 777544A BE 777544 A BE777544 A BE 777544A
Authority
BE
Belgium
Prior art keywords
diacetoxy
dihydroxy
chromones
dermatosis
antiallergic
Prior art date
Application number
BE777544A
Other languages
English (en)
Original Assignee
Takeda Chemical Industries Ltd
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 Takeda Chemical Industries Ltd filed Critical Takeda Chemical Industries Ltd
Priority to BE777544A priority Critical patent/BE777544A/fr
Publication of BE777544A publication Critical patent/BE777544A/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02—Heterocyclic 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
    • C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
    • C07D311/22—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
BE777544A 1971-12-30 1971-12-30 Derives de chromone-aldehyde. BE777544A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BE777544A BE777544A (fr) 1971-12-30 1971-12-30 Derives de chromone-aldehyde.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE777544A BE777544A (fr) 1971-12-30 1971-12-30 Derives de chromone-aldehyde.

Publications (1)

Publication Number Publication Date
BE777544A true BE777544A (fr) 1972-04-17

Family

ID=3859072

Family Applications (1)

Application Number Title Priority Date Filing Date
BE777544A BE777544A (fr) 1971-12-30 1971-12-30 Derives de chromone-aldehyde.

Country Status (1)

Country Link
BE (1) BE777544A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3984441A (en) 1971-06-21 1976-10-05 Takeda Chemical Industries, Ltd. Chromonealdehyde compounds and process for the production thereof
US4008252A (en) 1973-04-18 1977-02-15 Warner-Lambert Company Substituted-3-formylchromone derivatives

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3984441A (en) 1971-06-21 1976-10-05 Takeda Chemical Industries, Ltd. Chromonealdehyde compounds and process for the production thereof
US4008252A (en) 1973-04-18 1977-02-15 Warner-Lambert Company Substituted-3-formylchromone derivatives
US4098799A (en) 1973-04-18 1978-07-04 Warner-Lambert Company 3-formylchromones

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Legal Events

Date Code Title Description
RE20 Patent expired

Owner name: TAKEDA CHEMICAL INDUSTRIES LTD

Effective date: 19911230