9-azabicyclo[6.2.0]decan-10-one 在
immobilized lipase B from Candida antarctica 、 水 作用下,
以
异丙醚 为溶剂,
反应 170.0h,
以36%的产率得到(1S,8R)-9-azabicyclo[6.2.0]decan-10-one
参考文献:
名称:
Lipase-Catalyzed Enantioselective Ring Opening of Unactivated Alicyclic-Fused β-Lactams in an Organic Solvent
摘要:
A highly efficient and very simple method was developed for the synthesis of enantiopure beta-amino acids (e.g. cispentacin) and beta-lactams through the enzyme-catalyzed enantioselective ring opening of unactivated alicyclic, beta-lactams in organic media. High enantioselectivity (E > 200) was observed when the Lipolase flipase B from Candida antarctica)-catalyzed reactions were performed with H2O (1 equiv) in dilsopropyl ether at 60 degreesC. The resolved products, obtained in good chemical yield (36-47%), could be easily separated.
The invention is directed to 5,6-dihydro-1H-pyridin-2-one compounds and pharmaceutical compositions containing such compounds that are useful in treating infections by hepatitis C virus.
The invention is directed to 5,6-dihydro-1H-pyridin-2-one compounds of Formula I and pharmaceutical compositions containing such compounds that are useful in treating hepatitis C virus infections:
wherein
Z is
X is N or CR9;
Y is —(CR4R5)n—;
n is 2, 3, 4, or 5; and
R1 through R9 are defined herein.
Candida antarctica lipase B-catalyzed hydrolysis of carbocyclic 5–8-membered cis β-amino esters was carried out in green organic media, under solvent-free and ball-milling conditions. In accordance with the high enantioselectivity factor (E > 200) observed in organic media, the preparative-scale resolutions of β-amino esters were performed in tBuOMe at 65 °C. The unreacted β-amino ester enantiomers
在无溶剂和球磨条件下,在绿色有机介质中进行了南极假丝酵母脂肪酶 B 催化的碳环5-8 元顺式 β-氨基酯水解。根据在有机介质中观察到的高对映选择性因子 ( E > 200),β-氨基酯的制备级拆分是在 65 °C 的t BuOMe 中进行的。未反应的 β-氨基酯对映体 (1 R ,2 S ) 和产物 β-氨基酸对映体 (1 S , 2 R ) 的对映体过量 ( ee ) 值适中至极佳( ee s > 62% 和ee p> 96%) 和良好的化学收率 (>25%) 在一个或两个步骤中。对映异构体很容易通过有机溶剂/H 2 O 萃取分离。
Therapeutic peptides
申请人:COHBAR, INC.
公开号:US11111271B2
公开(公告)日:2021-09-07
Provided herein are peptides and peptide analogs and methods of treating a metabolic disease, e.g., obesity, diabetes, methods of treating cancer, methods of treating a liver disease, and methods of modulating fatty acid metabolism.
Peptide inhibitors of transcription factor aggregation
申请人:ADRX, INC.
公开号:US11117930B2
公开(公告)日:2021-09-14
This invention relates to materials, such as peptides, and methods to inhibit the aggregation transcription factors, for example p53 inhibitors, p63 inhibitors and p73 inhibitors. More specifically, the invention relates to cancer chemotherapeutics. More specifically, the invention provides pharmaceutical compositions and methods of treating cancer with certain peptides.