JCGGDB TOP Glycan Syntheses

Reaction

JCGG ID
JCGG-RAC0001404
Submitter
The Noguchi Institute
Reaction ID
R-0000-001404
Regist Date
2012/06/21 16:58:41
REACTANT
MOLECULE ID
JCGG-COM0001613 (Reaction Tree)
Reactant Type
NeuAc-Lac/LacNAc
Mol
11.3 micro mol
MOLECULE ID
JCGG-COM0001622 (Reaction Tree)
Mol
3.01 equiv.
MOLECULE ID
JCGG-COM0000746
Reactant Type
1H-tetrazole
Mol
4.57 equiv.
MOLECULE ID
JCGG-COM0001623
Reactant Type
Me2S
Mol
100 equiv.
MOLECULE ID
JCGG-COM0001624
Reactant Type
t-BuOOH
Mol
9.83 equiv.
MOLECULE ID
JCGG-COM0000522
Reactant Type
DBU
Mol
3.01 equiv.
MOLECULE ID
JCGG-COM0000057
Reactant Type
MeOH
Volume
1.6 mL
MOLECULE ID
JCGG-COM0000530
Reactant Type
28% methanolic NaOMe
Volume
16 micro L
PRODUCT
MOLECULE ID
JCGG-COM0001630 (Reaction Tree)
Yield
87%
REACTION DETAIL
Reaction Time
more than 30 minutes, 3 hours, 5 minutes, 19 hours
Reaction Temp
room temp, room temp, 0 degree C, room temp
Solvent
dry MeCN, MeCN, MeCN, MeCN/MeOH
Comment
1) NeuAc-Lac/LacNAc+6, 1H-tetrazole, 2) +Me2S, t-BuOOH, 3) +DBU, 4) +all the rest
Before the reaction, NeuAc-Lac/LacNAc and 6 were dried by coevaporation with dry EtOAc. (2 times)
The reactants were mixed at -40 degree in Celsius, and allowed to warm slowly to room temperature. (first phase)
The reactants were mixed at 0 degree in Celsius before stirred at room temperature. (second and fourth phases)
COMMENT
Keywords: Bisubstrate-type sialyltransferase inhibitors, CMP-NeuAc, N-acetyllactosamine, lactose, sialic acid, ST6N, ST3N
There are multiple phases in this reaction.
REFERENCE
Reference Id
REF-0000-000071
Issn
Print
Doi
10.1021/jo030042g
PubMed ID
12839452
Journal Name
The Journal of organic chemistry. (2003) 68 (14): 5602-13.
Article Title
Systematic syntheses and inhibitory activities of bisubstrate-type inhibitors of sialyltransferases.
Author
Hiroshi, Hinou; Xue-Long, Sun; Yukishige, Ito
Affiliation
RIKEN (The Institute of Physical and Chemical Research), 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan.
Reference Id
REF-0000-000072
Source
J. Org. Chem. 2003, 68, 5602-5613
Doi
10.1021/jo030042g

©2008-2013 Research Center for Medical Glycoscience, National Institute of Advanced Industrial Science and Technology (AIST)