6-O
6 O Acetylcodeine
... 6-O-Acetylcodeine, (I), was synthesized as a part of our study on opium alkaloids. The transformation of morphine deriva- tives into different metabolites is a matter of practical interest for detecting ...
9
Crystal structure of 4 nitrophenyl 6 O ethyl β D galactopyranoside monohydrate
... the O-alkylation of 1,2;3,4-di-O-isopropylidene-- d -galactopyranose was carried out as reported in the literature furnishing the 6-O-alkylated derivative (2) (Cironi & Varela, 2001; ...
9
Trilobolide 6 O isobutyrate, a eudesmanolide from Wedelia trilobata
... over silica gel (Merck, 60 g) and eluted with a gradient hexane± EtOAc system (from 0:100 to 100:0) to afford 26 fractions. Trilobo- lide-6-O-isobutyrate (80 mg) was obtained from fraction 23 and further ...
10
Preparation and biological activities of castanospermine and 6 O butanoyl castanospermine
... and 6-O-butanoyl castanospermine have attracted considerable interest because they have been found to have tremendous potential in some disorders such as diabetes, viral infection, immunosuppressive ...
6
Biochemical characterization of human heparan sulfate 6-O-endosulfatase
... the 6-OH position of GlcNAc to generate GlcA-[6-O- 35 S] GlcAc6S disaccharide motifs within the ...since 6-OSTs prefer N-sulfation first placed on glucosamine residues before any ...
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3 O Benzyl 6 O benzoyl 1,2 O isopropilidene 5 C nitromethyl a D glucofuranose
... evaporated to give a residue wich was purificated by flash column chromatography (ethyl acetate/hexane 1:3) to give 3- ...
11
1 O Benzyl 2,3 O isopropylidene 6 O tosyl α L sorbofuranose
... Martin (2007). For examples of the clinical uses of imino- sugars, see: Cox et al. (2003); Venier et al. (2012); Derosa & Maffioli (2012). For iminosugars in the treatment of cancer, cystic fibrosis and viral ...
11
Phenyl 2,3 di O acetyl 4 O (2 chloroacetyl) 6 O (2,3,4 tri O acetyl β D xylopyranosyl) 1 thio β D glucopyranoside
... The C13–C18 phenyl ring is disordered (Fig. 1). There are two types of hydrogen bonds in the structure (Table 1): (i) intramolecular C—H O hydrogen bonds, with C O = 2.661 (4)–2.768 (4) A ˚ , and (ii) ...
10
Methyl 6 O trityl α D glucopyranoside methanol disolvate
... C8B 0.0316 (7) 0.0400 (7) 0.0474 (8) −0.0148 (6) −0.0069 (6) 0.0079 (6) C9B 0.0453 (9) 0.0496 (9) 0.0638 (10) −0.0249 (7) −0.0074 (7) 0.0000 (7) C10B 0.0497 (10) 0.0568 (10) 0.0988 (16) −0.0304 (9) ...
16
6 O Cyanomethyl 1,2:3,4 di O isopropylidene α D galactopyranose
... highly distorted conformation of the six-membered pyranose ring. The presence of two five-membered 1,3-dioxolane rings fused to the pyranose ring at the 1,2- and 3,4-positions is responsible for the severe deviation from ...
8
The crystal structures of 3 O benzyl 1,2 O isopropylidene 5 O methanesulfonyl 6 O triphenylmethyl α D glucofuranose and its azide displacement product
... moiety. Elimination gives rise to four possible alkenes via cis and/or trans isomers with either a C-4/C-5 or a C-5/C-6 disposed double bond. Prior reports suggest that the latter pathway is more probable (Gramera ...
22
CRYSTAL AND MOLECULAR-STRUCTURE OF 2',3',5'-TRI-O-ACETYL-6-O-(MESITYLENESULPHONYL)GUANOSINE
... A Fortran IV computer program for structure factor calculation and least-squares refinement of crystal structures.. Carnegie Institution of Washington.[r] ...
5
{μ 6,6′ Dimethoxy 2,2′ [ethane 1,2 diylbis(nitrilomethylidyne)]diphenolato} μ nitrato dinitratoholmium(III)zinc(II)
... phenolate O atoms of the Schiff base ligand and one nitrate ...phenolate O atoms and one of the bridging nitrate O ...of O atoms, involving the pheno- late O atoms, two methoxy O ...
13
(6 Carboxylatopyridine 2 carboxylic acid κ2N,O)(pyridine 2,6 dicarboxylic acid κ2N,O)silver(I) dihydrate
... de®ned by two pyridyl N and two carboxyl O atoms from bidentate ligands in a trans arrangement. The planar ligands in the complex are almost perpendicular to each other. The complexes are connected via symmetric ...
8
Bis{6 methoxy 2 [(4 methylphenyl)iminiomethyl]phenolato κ2O,O′}bis(nitrato κ2O,O′)cadmium(II)
... H O hydrogen-bonding interactions stabilize the ...two O atoms, while the two nitrate groups also exhibit chelating behavior, leading to a distorted octahedral coordination of the Cd ...
12
Hexameric trimethylsilylmethyloxotin acetate, [(Me3SiCH2)Sn(O)(OAc)]6
... Data collection: SMART Bruker, 2000; cell re®nement: SAINT Bruker, 2000; data reduction: SAINT; programs used to solve structure: PATTY in DIRDIF92 Beurskens et al., 1992; programs used [r] ...
9
Bis{6 methoxy 2 [(4 methylphenylimino)methyl]phenol κ2O,O′}tris(nitrato κ2O,O′)terbium(III) monohydrate
... of o-vanillin with p-toluidine affords a Schiff base that rearranges its phenol H atom in its reaction with terbium(III) ...methoxy O atoms) as well as by three nitrate groups ...
11
catena Poly[[[diaqua(6 carboxypyridine 2 carboxylato κ3O,N,O′)erbium(III)] μ pyridine 2,6 dicarboxylato κ4O,N,O′:O] tetrahydrate]
... All C-bound H atoms were placed in calculated positions, with C— H distances of 0.93 A ˚ . H atoms bonded to O atoms were included in their as-found positions (0.81–1.09 A ˚ ). All H atoms were refined in the ...
9
cyclo{[(6 Amino 6 deoxy 2,3:4,5 di O isopropylidene D galactonic acid) (D Phe)]2}
... The material crystallizes in P1, with two molecules in the asymmetric unit (Fig. 2). The ring atoms in both molecules adopt the same conformation, the only differences being in the phenyl groups, which adopt different ...
20
N I O computer programs 6
... be described, A station consists of n sets of data, where one set of data or one sample consists of three numbers - pressure or depth see first paragraph of this program description, tem[r] ...
43