PROCESS FOR THE PREPARATION OF PTERIDINE DERIVATIVES
申请人:Attolino Emanuele
公开号:US20130090474A1
公开(公告)日:2013-04-11
The application discloses a process for the preparation of 5-deoxy-L-arabinose of formula (VI); comprising the conversion of a compound of formula (XII); wherein n is 0, 1 or 2; which can be used as intermediate for the synthesis of sapropterin.
PROCESS FOR PRODUCING CARBON-DIMINISHED ALDOSE COMPOUND
申请人:Asubio Pharma Co., Ltd.
公开号:EP1849793A1
公开(公告)日:2007-10-31
The present invention provides a process capable of industrially producing 5-deoxy-L-arabinose, important as a raw material for the production of sapropterin useful as a therapeutic agent for atypical hyperphenylalaninemia, satisfactorily efficiently even with a simple production apparatus. Provided is the process for producing 5-deoxy-L-arabinose characterized by including: reacting L-rhamnose with a C11-16 straight chain alkyl mercaptan compound in the presence of an acid catalyst to prepare L-rhamnose dialkylmercaptal; subjecting then the obtained compound to an oxidation reaction to prepare a sulfonyl derivative; and subjecting then the sulfonyl derivative to a carbon-reduction reaction to prepare 5-deoxy-L-arabinose. The present production process can also be applied to a process for producing compounds obtained by removing one carbon atom from other aldol compounds, and thus the present invention provides a general process for producing compounds obtained by reducing the number of carbon atoms from aldose compounds.
Process for Producing Carbon-Reduced Aldose Compounds
申请人:Okitsa Mitsuhito
公开号:US20090030191A1
公开(公告)日:2009-01-29
The present invention provides a process capable of industrially producing 5-deoxy-L-arabinose, important as a raw material for the production of sapropterin useful as a therapeutic agent for atypical hyperphenylalaninemia, satisfactorily efficiently even with a simple production apparatus. Provided is the process for producing 5-deoxy-L-arabinose characterized by including: reacting L-rhamnose with a C
11-16
straight chain alkyl mercaptan compound in the presence of an acid catalyst to prepare L-rhamnose dialkylmercaptal; subjecting then the obtained compound to an oxidation reaction to prepare a sulfonyl derivative; and subjecting then the sulfonyl derivative to a carbon-reduction reaction to prepare 5-deoxy-L-arabinose. The present production process can also be applied to a process for producing compounds obtained by removing one carbon atom from other aldol compounds, and thus the present invention provides a general process for producing compounds obtained by reducing the number of carbon atoms from aldose compounds.