METHOD FOR SYNTHESIS OF N-SUBSTITUTED SALICYLAMIDES Russian patent published in 2011 - IPC C07C231/02 C07C231/12 

Abstract RU 2411234 C2

FIELD: chemistry.

SUBSTANCE: invention relates to a method for synthesis of compounds of general formula IV. The method involves (1) reaction of a compound of formula I with a compound of formula II in basic conditions where the phenol hydroxy group is present in at least partially deprotonated form, and in an aprotic solvent to form a compound of formula III, (2) if necessary the group R7 is converted to a carboxy group, (3) if necessaty, the product obtained at step (1) or (2) is treated with an acid to form a compound of formula IV. n equals 1-8, m equals 1-4, R1 is selected from a group comprising C1-C6alkyl with a straight or branched chain, a carboxy-activating group and a peptide condensing reagent, each R2 can be independently selected from a group comprising -OH, NR3R4, halogen, C1-C4 alkyl, halogen (C1-C4) alkyl, C1-C4 alkoxy, C2-C4 alkenyl, each R5 and each R6 is independently selected from a group comprising hydrogen, -OH, NR3R4, halogen, C1-C4 alkyl, C1-C4 alkoxy, C2-C4 alkenyl, where each R5 and each R6 are optionally identical, R3 and R4 are each independently selected from a group comprising hydrogen, -OH, C1-C4 alkyl, halogen(C1-C4)alkyl, C1-C4 alkoxy, C2-C4 alkenyl, and R7 denotes a carboxylic acid or any group which can be converted to a carboxy group, for example an amide or nitrile.

EFFECT: invention enables to obtain N-substituted salicylamides which can be used in compositions for delivering active agents into an organism.

19 cl, 3 ex

Similar patents RU2411234C2

Title Year Author Number
METHOD FOR SYNTHESIS OF N-SUBSTITUTED SALICYLAMIDES 2005
  • Riss Bernkhar
  • Majer Ul'Rikh
RU2404158C2
DERIVATIVES OF HYDROXYMETHYLFURAZAN CARBOXYLIC ACID AND PHARMACEUTICAL PREPARATION 1994
  • Karl Shenafinger
  • Gel'Mut Bon
RU2134687C1
COMPOSITION FOR OXIDIZING COLORING OF KERATIN FIBERS AND METHOD OF COLORING USING SAID COMPOSITION 1999
  • Odusse Mari-Paskal'
RU2198650C2
COMPOSITE FOR OXIDATIVE STAINING OF KERATINE FIBERS AND METHOD OF STAINING USING THIS COMPOSITE 1999
  • Odusse Mari-Paskal'
RU2185810C2
ASYMMETRIC ARYLPHOSPHITES, POLYMERIC COMPOSITION AND ITS PREPARING 1992
  • Rita Pittelud[Ch]
  • Peter Khofmann[Ch]
  • Rudol'F Maul[De]
  • Fol'Ker Shenk[De]
  • Ehduard Troksler[Ch]
  • Khorst Tsinke[De]
RU2071478C1
STAINING COMPOSITION COMPRISING PYRAZOL[1,5-A]-PYRIMIDINE AS OXIDIZING BASE AND NAPHTHALENE DYE-FORMING COMPONENT AND METHOD OF STAINING 1999
  • Odusse Mari-Paskal'
RU2190997C2
SUBSTITUTED SULFONYLAMINOMETHYLBENZOIC ACIDS (DERIVATIVES) AND METHOD FOR THEIR PREPARING (VARIANTS) 2001
  • Lorents Klaus
  • Ressel' Khans-Joakhim
  • Vill'Ms Lotar
RU2293080C2
METHOD OF 4-HYDROXYPROLINE SUBSTRUCTURE-CONTAINING COMPOUND SYNTHESIS 2003
  • Vitfel'D Bernkhard
  • Prikoshovikh Val'Ter
  • Ehrb Bernkhard
  • Pakhinger Verner
RU2392265C2
METHOD OF SYNTHESIS OF HERBICIDE SULFONYLUREAS AND N-(PYRIMIDINYL- OR TRIAZINYL)- CARBAMATES AS INTERMEDIATE COMPOUNDS 1996
  • Gerkhard Shnabel'
  • Kharal'D Knorr
  • Klemens Minn
  • Jan Fermeren
RU2177002C2
COMPOSITION FOR OXIDATIVE KERATIN FIBER STAINING, METHOD OF THEIR STAINING, KIT FOR OXIDATIVE KERATIN FIBER STAINING 1999
  • Odusse Mari-Paskal'
RU2193390C2

RU 2 411 234 C2

Authors

Riss Bernkhar

Dates

2011-02-10Published

2005-12-14Filed