1: acetic acid / 1 h / 90 °C
2: nitric acid; sulfuric acid / 0 - 20 °C
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参考文献
BOEHRINGER INGELHEIM INTERNATIONAL GMBH; STEURER, Steffen
Patent: WO2012/85127 A1, 2012 ;
WO 2012/085127 A1
Title/Abstract Full Text Show Details
BOEHRINGER INGELHEIM INTERNATIONAL GMBH
Patent: US2012/322803 A1, 2012 ;
US 20120322803 A1