Process for the Production of Benzopyran-2-ol Derivatives
申请人:Ahman Jens Bertil
公开号:US20090306384A1
公开(公告)日:2009-12-10
The invention provides a process for producing a compound of formula (I),
wherein Y is selected from the group consisting of CH
3
, CH
2
OH, CH
2
CH
2
OH, CH
2
Br and Br; comprising the steps of:
(i) reacting a compound of formula (II),
wherein OX represents hydroxy or O
−
M
+
, in which M
+
is a cation selected from Li
+
, Na
+
and K
+
, and
Y is as defined above;
with trans-cinnamaldehyde (III),
in the presence of a secondary amine compound; then
(ii) treating the product of the preceding step with acid to afford the compound of formula (I).
The above process may also be used in the production of tolterodine and fesoterodine, which are useful in the treatment of overactive bladder.
Process for the production of benzopyran-2-ol derivatives
申请人:Pfizer Inc.
公开号:US08067594B2
公开(公告)日:2011-11-29
The invention provides a process for producing a compound of formula (I),
wherein Y is selected from the group consisting of CH3, CH2OH, CH2CH2OH, CH2Br and Br; comprising the steps of:
(i) reacting a compound of formula (II),
wherein OX represents hydroxy or O−M+, in which M+ is a cation selected from Li+, Na+ and K+, and
Y is as defined above;
with trans-cinnamaldehyde (III),
in the presence of a secondary amine compound; then
(ii) treating the product of the preceding step with acid to afford the compound of formula (I).
The above process may also be used in the production of tolterodine and fesoterodine, which are useful in the treatment of overactive bladder.