Avermectin B1a aglycone synthesis
- Product Name:Avermectin B1a aglycone
- CAS Number:71828-14-3
- Molecular formula:C34H48O8
- Molecular Weight:584.75
65195-55-3
150 suppliers
$60.00/1mg
71828-14-3
12 suppliers
$356.00/1mg
Yield:71828-14-3 5.7 g
Reaction Conditions:
with sulfuric acid in methanol at 18; for 16 h;Inert atmosphere;
Steps:
Avermectin B1a aglycone 13.
Avermectin B1a (20.0g, 22.9mmol) was added to a solution of 5% H2SO4 in MeOH (20mL of H2SO4,380mL of MeOH) and stirred at 18oC under N2 for 16h. ThenCHCl3 (300mL) was added, and the solution was transferred into aseparatory funnel, washed with aqueous sodium bicarbonate, dried, andconcentrated in vacuo to 24.0gof yellow foam. Then MeOH was added to this residue, which slowly crystallized.The crystalline residues were recrystallized from MeOH to give 5.7g of compound 13.
References:
Zhang, Jian;Nan, Xiang;Yu, Hai-Tao;Cheng, Pi-Le;Zhang, Yan;Liu, Ying-Qian;Zhang, Shao-Yong;Hu, Guan-Fang;Liu, Huanxiang;Chen, An-Liang [European Journal of Medicinal Chemistry,2016,vol. 121,p. 422 - 432]
65195-55-3
150 suppliers
$60.00/1mg
71828-14-3
12 suppliers
$356.00/1mg
71831-09-9
17 suppliers
$323.00/1mg