[EN] PROCESSES AND INTERMEDIATES FOR PREPARING SUBSTITUTED CHROMANOL DERIVATIVES [FR] PROCEDE ET INTERMEDIAIRES POUR LA PREPARATION DE DERIVES DE CHROMANOL SUBSTITUES
The invention relates to processes for preparing a compound of the formula
1
and the enantiomer of said compound, wherein the benzoic acid moiety is attached at position 6 or 7 of the chroman ring, and R
1
, R
2
, and R
3
are as defined herein. The invention further relates to intermediates that are useful in the preparation of the compound of formula X above.
Processes and intermediates for preparing substituted chromanol derivatives
申请人:Pfizer Inc.
公开号:US06444826B1
公开(公告)日:2002-09-03
The invention relates to processes for preparing a compound of the formula
and the enantiomer of said compound, wherein the benzoic acid moiety is attached at position 6 or 7 of the chroman ring, and R1, R2, and R3 are as defined herein. The invention further relates to intermediates that are useful in the preparation of the compound of formula X above.
Processes for preparing substituted chromanol derivatives
申请人:Pfizer Inc.
公开号:US06096906A1
公开(公告)日:2000-08-01
The invention relates to processes for preparing a compound of the formula (X) and the enantiomer of said compound, wherein the benzoic acid moiety is attached at position 6 or 7 of the chroman ring, and R.sup.1, R.sup.2 and R.sup.3 are as defined herein. The invention further relates to intermediates that are useful in the preparation of the compound of formula (X). ##STR1##