CHANGOER, Lekhram,VAN DER LOO, Cornelis Herman Michel,KELLER, Erik
申请号：
EP16789992
公开号：
EP3291806A4
申请日:
2016.05.04
申请国别(地区):
EP
年份:
2018
代理人:
摘要：
Δ9-THC carboxylic acid is extracted from cannabis flowers using a first organic solvent, then separated using a second aqueous solvent. Δ9-THC carboxylic acid is converted to Δ9-THC carboxylic salt before being extracted by a third organic solvent and converted back to Δ9-THC carboxylic acid. Using a solvent swap, Δ9-THC carboxylic acid is decarboxylated and extracted again with an organic solvent prior to purification to give Δ9-THC.
