MX9705480A - Farmacos. - Google Patents

Farmacos.

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Publication number
MX9705480A
MX9705480A MX9705480A MX9705480A MX9705480A MX 9705480 A MX9705480 A MX 9705480A MX 9705480 A MX9705480 A MX 9705480A MX 9705480 A MX9705480 A MX 9705480A MX 9705480 A MX9705480 A MX 9705480A
Authority
MX
Mexico
Prior art keywords
side chain
purine
hydroxy
conversion
position side
Prior art date
Application number
MX9705480A
Other languages
English (en)
Other versions
MXPA97005480A (es
Inventor
Victor Witold Jacewicz
David Alan Jones
Original Assignee
Smithkline Beecham Plc
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 Smithkline Beecham Plc filed Critical Smithkline Beecham Plc
Publication of MX9705480A publication Critical patent/MX9705480A/es
Publication of MXPA97005480A publication Critical patent/MXPA97005480A/es

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  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicinal Preparation (AREA)

Abstract

Un proceso para la preparacion de: i) penciclovir o ii) famciclovir dicho proceso una o más de las siguientes etapas: a) formar una purina por cierre del anillo de imidazol o pirimidina; b) reaccionar una purina con un intermediario precursor de cadena lateral en la posicion 9 apropiado; c) conversion de una cadena lateral en la posicion 9 a: i) 4-hidroxi-3-hidroximetilbut-1-ilo o ii) 4-acetoxi-3-acetoximetilbut-1-ilo d) conversion de una purina a: i) guanina o ii) 2-aminopurina: caracterizado en que: la cadena lateral tal como en el compuesto de la formula (I): en donde Ra y Rb son hidroxi protegido; la cual se convierte a la cadena lateral deseada, por reduccion usando un agente reductor moderado.
MXPA/A/1997/005480A 1996-07-20 1997-07-18 Procedimiento para preparar penciclovir o famciclovir MXPA97005480A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9615275.6 1996-07-20
GBGB9615275.6A GB9615275D0 (en) 1996-07-20 1996-07-20 Pharmaceuticals

Publications (2)

Publication Number Publication Date
MX9705480A true MX9705480A (es) 1998-08-30
MXPA97005480A MXPA97005480A (es) 1998-11-12

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Also Published As

Publication number Publication date
GR1002943B (el) 1998-07-21
ES2138536A1 (es) 2000-01-01
ES2138536B1 (es) 2000-11-16
PT102028B (pt) 1999-04-30
AT412645B (de) 2005-05-25
PT102028A (pt) 1998-01-30
ATA122597A (de) 2004-10-15
GB9615275D0 (en) 1996-09-04

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Legal Events

Date Code Title Description
GB Transfer or assignment

Owner name: NOVARTIS INTERNATIONAL PHARMACEUTICAL LTD.

FG Grant or registration
MM Annulment or lapse due to non-payment of fees