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USRE22264E - Secondary and tertiary j-amino - Google Patents

Secondary and tertiary j-amino Download PDF

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Publication number
USRE22264E
USRE22264E US22264DE USRE22264E US RE22264 E USRE22264 E US RE22264E US 22264D E US22264D E US 22264DE US RE22264 E USRE22264 E US RE22264E
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United States
Prior art keywords
amino
compound
tertiary
alkyl
group
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C229/00Compounds containing amino and carboxyl groups bound to the same carbon skeleton
    • C07C229/38Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino groups bound to acyclic carbon atoms and carboxyl groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton

Definitions

  • R may be hydrogen, alkyl or aryl radical, R may be aryl or alkyl with more than one carbon atom, and any two or three R" H, the remaining R"
  • a convenient method Mitchells reagent Mitchells reagent.
  • R is taken from the group consisting of H, alkyl and aryl radicals contain ing not more than 6 carbon atoms
  • R. is taken from the group consisting of aryl and alkyl radicals having at least two carbon atoms, and not more than 6 and at least two and no more than three R" are OH, the remaining being H. said substance being prepared as a therapeutic agent.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Reissued Feb. 9, 1943 UNITED STATES PATENT OFFICE SECONDARY AND TERTIARY S-AMINO- BIETHYL-POLYHYDROXY-PHTHALIDES Walter Siegfried Loewe, New
Neumann, Scarsdale, N. Y.
signor to Walter Rochelle, N. Y., as-
No Drawing. Original No. 2,268,990, dated January 6, 1942, Serial No. 291,30 Application for reissue June 4, August 22, 1939. 8, 1942, Serial No.
4 Claims. (Cl. 260-344) 3 amino methyl polyhydroxy organic bases.
I have discovered that the primary and the mono-methyl amines of this class of chemicals tious diseases, and the like.
My novel compounds can be expressed by the general formula:
where R may be hydrogen, alkyl or aryl radical, R may be aryl or alkyl with more than one carbon atom, and any two or three R" H, the remaining R" A convenient method Mitchells reagent.
Example II.Method of preparing 3-(benzylaminomethyl) -5,7-hydroxy-phthalide.
17 gm. of 2,4-hydroxybenzoic acid, 15 gm. 01' benzylaminoacetaldehyde, 300 cc. of glacial acetic concentrated hydrochloric acid and 30 cc. of water are heated together for about fifteen hours at C. The mixture is evaporated, the residue dissolved in water, filtered, and the base precipitated from the filtrate by amwhen added to the solution of the base in a dilute hydrochloric acid, produces a reddish-brown precipitate.
Example IIL-Method for preparing 3-(di-nbutyl) -aminomethyl-4,5,B-hydroxy-phthalide.
11.5 gm. of gallic acid, 12 gm. of di-n-butyl- 300 cc. of glacial acetic acid, 93 cc.
brownish powder.
The foregoing description of ployed is merely illustrative of the invention.
polyhydroxy-phthalides, as, for example, substitution of monoor di-alkyl or -aryl-amine in place of the halogen in halogenmethyl-polyhydroxy-phthalides, without departing from the spirit of my invention as set forth in the appended claims.
I claim as my 1. A substance represented by the formula:
invention and salts thereof where R is taken from the group consisting of H, alkyl and aryl radicals contain ing not more than 6 carbon atoms, R. is taken from the group consisting of aryl and alkyl radicals having at least two carbon atoms, and not more than 6 and at least two and no more than three R" are OH, the remaining being H. said substance being prepared as a therapeutic agent.
2. A compound of the group consisting in 3- (n-propyl-aminomethyl) -4,5 ,6 hydroxy-phthalide and salts thereof, said compound being preared as a therapeutic agent.
3. A compound of the group consisting in 3- (benzylaminomethyl) 5,7 hydroxy phthalide and salts thereof, said compound being prepared as a therapeutic agent.
'4. A compound of the group consisting in 3- (di n butyl') aminomethyl 4,5,6 hydroxyphthal-ide and salts thereof, said compound being therapeutic agent.
WALTER SIEGFRIED LOEWE.
prepared as a
US22264D Secondary and tertiary j-amino Expired USRE22264E (en)

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USRE22264E true USRE22264E (en) 1943-02-09

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US22264D Expired USRE22264E (en) Secondary and tertiary j-amino

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2473484A (en) * 1946-09-12 1949-06-14 Smith Kline French Lab Method for the preparation of aminophthalidylalkanes
US2513698A (en) * 1945-03-09 1950-07-04 Abbott Lab 2 (3) benxofuranone derivatives and methods of making them
US2581986A (en) * 1946-02-02 1952-01-08 Smith Kline French Lab Method for the preparation of aminophthalidylalkane salts

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2513698A (en) * 1945-03-09 1950-07-04 Abbott Lab 2 (3) benxofuranone derivatives and methods of making them
US2581986A (en) * 1946-02-02 1952-01-08 Smith Kline French Lab Method for the preparation of aminophthalidylalkane salts
US2473484A (en) * 1946-09-12 1949-06-14 Smith Kline French Lab Method for the preparation of aminophthalidylalkanes

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