Synthesis and fungicidal activity of alkaloid-containing carbohydrates
摘要:
N-Glycosylamines, triethylammonium salt of xylosyl- and glucosylbenzyldithiocarbamates, and their derivatives containing fragments of alkaloids were synthesized; some of these substances exhibit fungicidal activity.
N-glycosylated carboxamide derivatives as growth-promoters in livestock
申请人:Bayer Aktiengesellschaft
公开号:US04680287A1
公开(公告)日:1987-07-14
Growth of animals is promoted by inclusion in their feed of compounds of the formula ##STR1## in which Z is a glycosyl radical bonded via the anomeric carbon atom, R.sub.1 is hydrogen or an optionally substituted hydrocarbon radical having up to 30 Carbon atoms optionally interrupted by O, N or S, and R.sub.2 is hydrogen or an alkyl or aralkyl radical having up to 30 Carbon atoms optionally interrupted by O or substituted by groups containing oxygen or by halogen, with the proviso that COR.sub.1 is not an acyl group having 1-5 Carbon atoms when R.sub.2 is an alkyl group having 10-20 Carbon atoms.
N-glycosylated carboxamide derivatives and their use for influencing the
申请人:Bayer Aktiengesellschaft
公开号:US04683222A1
公开(公告)日:1987-07-28
The invention relates to N-glycosylated carboxamide derivatives of Formula I which are useful for influencing the body's inherent defenses, e.g. for increasing immune system antibodies. Also included in the invention are compositions containing said N-glycosylated carboxamide derivative of Formula I as active ingredients and methods for the use of said compounds and compositions.
N-glycosylated carboxylic acid derivatives as agents for combating
申请人:Troponwerke GmbH & Co., KG
公开号:US04710491A1
公开(公告)日:1987-12-01
A method of combating rheumatic diseases which comprises administering to a patient afflicted therewith an amount effective to combat such disease of a compound of the formula ##STR1## in which Z is a glycosyl radical bonded via the anomeric carbon atom, R.sub.1 is hydrogen or an optionally substituted hydrocarbon radical with up to 30 C atoms, which hydrocarbon radical is optionally interrupted by O, N or S, and R.sub.2 is hydrogen or an alkyl or aralkyl radical with up to 30 C atoms, which is optionally interrupted by O, N or S or substituted by an oxygen-containing group or halogen, with the proviso that COR.sub.1 is not an acyl group with 1-5 C atoms if R.sub.2 is alkyl with 10-20 C atoms.
Green glycosylation using ionic liquid to prepare alkyl glycosides for studying carbohydrate–protein interactions by SPR
作者:F. Javier Muñoz、Sabine André、Hans-Joachin Gabius、José V. Sinisterra、María J. Hernáiz、Robert J. Linhardt
DOI:10.1039/b814171a
日期:——
Several simple glycosides of D-glucose (Glc) and N-acetyl-D-galactosamine (GalNAc) were prepared in a single step glycosylation reaction using unprotected and unactivated sugar donors. The resulting GalNAc glycoside, containing a bifunctional linker, was used to immobilize this glycoconjugate to a self assembled monolayer on a gold biosensor chip. Surface plasmon resonance (SPR) experiments demonstrated that this immobilized glycoconjugate bound to GalNAc specific lectin, Viscum album agglutinin.
Direct Synthesis of β-<i>N</i>-Glycosides by the Reductive Glycosylation of Azides with Protected and Native Carbohydrate Donors
作者:Jianbin Zheng、Kaveri Balan Urkalan、Seth B. Herzon
DOI:10.1002/anie.201301264
日期:2013.6.3
A simple and straightforward method for the stereocontrolled synthesis of β‐linked N‐glycosides uses alkyl and aryl azides as the nitrogen source. The N‐glycosides are formed in high yields and with high β selectivities (typically >70 % yield, >15:1 β:α selectivity). This approach is also amenable to the synthesis of N‐glycosylated amino acids and peptides (see example, Fmoc=9‐fluorenylmethoxycarbonyl)