Patent ID: 11912716
Assignee: GUANGXI JIUFU BIOTECHNOLOGY CO., LTD
Field: Organic fine chemistry (Chemistry)
Classification: CPC A  C  Y | IPC A  C

Claim 3:
4. The method for preparing the compound according to claim 1, wherein in R3: the vegetable oil is tea seed oil, camellia seed oil, soybean oil, or olive oil;
the vegetable oil is added in a weight ratio of “extract:vegetable oil=2-6:1-3”;
the heating is carried out at a temperature of 60-80° C.;
the time for the standing is 7-10 days; and
the washing comprises washing with n-hexane, petroleum ether, or 120 #gasoline for 3-5 times, with an amount of 200-500 ml each time.