877875-96-2Relevant academic research and scientific papers
Anti selective glycolate aldol reactions of (: S)-4-isopropyl-1-[(R)-1-phenylethyl]imidazolidin-2-one: application towards the asymmetric synthesis of 8-4′-oxyneolignans
Gangar, Mukesh,Ittuveetil, Avinash,Goyal, Sandeep,Pal, Anang,Harikrishnan,Nair, Vipin A.
, p. 102116 - 102126 (2016/11/09)
The anti selective glycolate aldol reactions of (S)-4-isopropyl-1-[(R)-1-phenylethyl]imidazolidin-2-one auxiliary have been standardized with high yields and excellent diastereoselectivities on various substituted aryl, allyl and alkyl aldehydes. The optimized reaction conditions were employed for the stereoselective synthesis of oxyneolignans.
Two new neolignans from Syringa velutina Kom.
Xue-Song, Feng,Yang, Qu,Lei, Xu,Da-Cheng, Wang,Li-Jun, Wu,Fan-Hao, Meng,Ya-Ru, Liu
experimental part, p. 953 - 958 (2009/09/08)
Two new neolignans, (7S,8R)-guaiacylglycerol-8-O-4'-sinapyl ether 9'-O-β-D-glucopyranoside (1) and (7S,8R)-syringylglycerol-8-O-4'-sinapyl ether 9'-O-β-D-glucopyranoside (2) were isolated from the leaves of Syringa velutina Kom.. Their structures were est
Structure elucidation and NMR spectral assignments of four neolignan glycosides with enantiometric aglycones from Osmanthus ilicifolius
Machida, Koichi,Sakamoto, Shigeaki,Kikuchi, Masao
experimental part, p. 990 - 994 (2009/05/26)
Four new 8-O-4′ type neolignan glycosides with enantiometric aglycones, (7S,8R)-erythro-guaiacylglycerol-β-O-4′-sinapyl ether 9-O-β-D-glucopyranoside (1), (7R,8S)-erythro-guaiacylglycerol-β-O- 4′-sinapyl ether 9-O-β-D-glucopyranoside (2), (7S,8R)-erythro-
The Constituents of Eucommia ulmoides OLIV. VI. Isolation of a New Sesquilignan and Neolignan Glycosides
Deyama, Takeshi,Ikawa, Takako,Kitagawa, Shizuka,Nishibe, Sansei
, p. 1803 - 1807 (2007/10/02)
A new sesquilignan glycoside, syringylgycerol-β-syringaresinol ether 4'', 4'''-di-O-β-D-glucopyranoside (1), and a new neolignan glycoside, dehydrodiconiferyl alcohol 4,γ'-di-O-β-D-glucopyranoside (2), were isolated from the bark of Eucommia ulmoides OLIV. (Eucommiaceae), together with a known neolignan glycoside, citrusin B (3).Their structures were determined on the basis of chemical evidence and spectroscopic analyses. Keywords---Eucommia ulmoides; lignan; sesquilignan; neolignan; dihydrobenzofuran; syringylglycerol-β-syringaresinol ether 4'',4'''-di-O-β-D-glucopyranoside; dehydrodiconiferyl alcohol 4,γ'-di-O-β-D-glucopyranoside; 13C-NMR
