[EN] NOVEL PROCESS FOR THE PREPARATION OF SAPROPTERIN DIHYDROCHLORIDE AND ITS KEY INTERMEDIATE, L-BIOPTERIN<br/>[FR] NOUVEAU PROCÉDÉ DE PRÉPARATION DE DICHLORHYDRATE DE SAPROPTÉRINE ET DE SON INTERMÉDIAIRE CLÉ, LA L-BIOPTÉRINE
申请人:NATCO PHARMA LTD
公开号:WO2016189542A1
公开(公告)日:2016-12-01
The present invention relates to a novel process for the preparation of Sapropterin dihydrochloride of formula (1) and its key intermediate L-erythro-biopterin of formula (2). The present process is a simple and economically viable process for commercial production of Sapropterin dihydrochloride of formula (1) and its key intermediate L-biopterin of formula (2).
The influence of microwave irradiation on stereospecific Mo(VI)-catalyzed transformation of deoxysugars
作者:Zuzana Hricovíniová
DOI:10.1016/j.tetasy.2009.05.010
日期:2009.6
The stereospecific mutual isomerization of 5-, 6-, and 7-deoxysugars in a microwave field with Mo(VI) as a catalyst is reported. The reaction cycle allows the use of catalytic amounts of molybdate ions to form highly reactive catalytically active dimolybdate complexes that create conditions for stereospecific intramolecular rearrangement. The microwave-enhanced Mo(VI)-catalyzed transformation of deoxyaldoses occurred with full stereospecificity resulting in the formation of the corresponding epi-deoxyaldoses in very good yields. The microwave field has a Substantial effect on the transformation studied. (C) 2009 Elsevier Ltd. All rights reserved.
MORI, KENJI;KIKUCHI, HARUHIKO, LIEBIGS ANN. CHEM.,(1989) N2, C. 1267-1269
作者:MORI, KENJI、KIKUCHI, HARUHIKO
DOI:——
日期:——
Mori, Kenji; Kikuchi, Haruhiko, Liebigs Annalen der Chemie, 1989, p. 1267 - 1270