AR003831A1 - IMPROVED PROCEDURE TO PRODUCE EPTASTIGMINE AND A NEW INTERMEDIATE USEFUL TO THIS END. - Google Patents

IMPROVED PROCEDURE TO PRODUCE EPTASTIGMINE AND A NEW INTERMEDIATE USEFUL TO THIS END.

Info

Publication number
AR003831A1
AR003831A1 ARP960104662A ARP960104662A AR003831A1 AR 003831 A1 AR003831 A1 AR 003831A1 AR P960104662 A ARP960104662 A AR P960104662A AR P960104662 A ARP960104662 A AR P960104662A AR 003831 A1 AR003831 A1 AR 003831A1
Authority
AR
Argentina
Prior art keywords
eptastigmine
produce
new intermediate
improved procedure
intermediate useful
Prior art date
Application number
ARP960104662A
Other languages
Spanish (es)
Original Assignee
Angelini Ricerche Spa
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 Angelini Ricerche Spa filed Critical Angelini Ricerche Spa
Publication of AR003831A1 publication Critical patent/AR003831A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
    • C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
    • C07D487/04—Ortho-condensed systems

Landscapes

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

Abstract

Procedimiento mejorado para producir eptastigmina y sus sales de adición ácida con ácidos orgánicos en el cual la mejora consiste en el hecho de que lapreparación de eserolina a partir de fisostigmina se realiza haciendo reaccionar la fisostigmina con un agente sililante adecuado y sustituyendodespués, en el silil derivado así obtenido, el grupo sililo por un átomo de hidrógeno. Ventajosamente, la sucesiva adición de eptilisocianato a laeserolina se realiza en presencia de una base y de un solvente polar aprótico.Improved process to produce eptastigmine and its acid addition salts with organic acids, in which the improvement consists in the fact that the preparation of eseroline from physostigmine is carried out by reacting the physostigmine with a suitable silylating agent and then substituting, in the silyl derived thus obtained, the silyl group for a hydrogen atom. Advantageously, the successive addition of eptylisocyanate to eseroline is carried out in the presence of a base and a polar aprotic solvent.

ARP960104662A 1995-10-13 1996-10-09 IMPROVED PROCEDURE TO PRODUCE EPTASTIGMINE AND A NEW INTERMEDIATE USEFUL TO THIS END. AR003831A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT95MI002097A IT1276928B1 (en) 1995-10-13 1995-10-13 IMPROVED PROCESS TO PRODUCE EPTASTIGMINE AND NEW INTERMEDIATE USEFUL FOR THE PURPOSE

Publications (1)

Publication Number Publication Date
AR003831A1 true AR003831A1 (en) 1998-09-09

Family

ID=11372353

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP960104662A AR003831A1 (en) 1995-10-13 1996-10-09 IMPROVED PROCEDURE TO PRODUCE EPTASTIGMINE AND A NEW INTERMEDIATE USEFUL TO THIS END.

Country Status (5)

Country Link
AR (1) AR003831A1 (en)
AU (1) AU7284196A (en)
IT (1) IT1276928B1 (en)
WO (1) WO1997014694A1 (en)
ZA (1) ZA968284B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2543322A1 (en) 2003-10-21 2005-05-12 Sention, Inc. Carbamoyl esters that inhibit cholinesterase and release pharmacologically active agents
JP2010518010A (en) 2007-02-02 2010-05-27 コルシド・ファーマシューティカルズ・インコーポレイテッド Compounds that inhibit cholinesterase

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1199076B (en) * 1984-03-01 1988-12-30 Consiglio Nazionale Ricerche PHYSOSTIGMINE DERIVATIVES WITH PROPERTY OF INHIBITION OF ACETICOLINESTERASI AND RELATED PRODUCTION PROCESS
IT1225462B (en) * 1987-04-03 1990-11-14 Mediolanum Farmaceutici Srl ORGANIC SALTS OF PHYSOSTIGMIN DERIVATIVES
IT1244746B (en) * 1991-02-14 1994-08-08 Laboratorio Chimico Int Spa PROCEDURE FOR THE PREPARATION OF 1,3A, 8, -TRIMETHYL-1,2,3,3A, 8, -8A-HEXAIDRO PIRROL (2,3-B) INDOLO-5 (3AS, 8AR) -EPTILCARBAMMATE

Also Published As

Publication number Publication date
ITMI952097A0 (en) 1995-10-13
AU7284196A (en) 1997-05-07
ZA968284B (en) 1997-05-02
ITMI952097A1 (en) 1997-04-13
IT1276928B1 (en) 1997-11-03
WO1997014694A1 (en) 1997-04-24

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