Design of potent inhibitors of human β-secretase. Part 1
摘要:
We describe a novel series of potent inhibitors of human beta-secretase. These compounds possess the hydroxyethyl amine transition state isostere. A 2.5A crystal structure of inhibitor 32 bound to BACE is provided.
The present invention relates to oxonium salts having [(R
o
)
3
O]
+
cations and sulfonium salts having [(R
o
)
3
S]
+
cations, where R
o
denotes straight-chain or branched alkyl groups having 1-8 C atoms or phenyl which is unsubstituted or substituted by R
o
, OR
o
, N(R
o
)
2
, CN or halogen, and anions selected from the group of [PF
x
(C
y
F
2y+1−z
H
z
)
6−x
]
−
anions, where 2≦x≦5, 1≦y≦8 and 0≦z≦2y+1, or anions selected from the group of [BF
n
(CN)
4−n
]
−
anions, where n=0, 1 , 2 or 3, or anions selected from the group of [(R
f1
SO
2
)
2
N]
−
anions or anions selected from the group of [BF
w
R
f2
4−w
]
−
anions, to processes for the preparation thereof, and to the use thereof, in particular for the preparation of ionic liquids.
An efficient, one-pot synthesis of trithiocarbonates from the corresponding thiols using the Mitsunobu reagent
作者:Devdutt Chaturvedi、Amit K. Chaturvedi、Nisha Mishra、Virendra Mishra
DOI:10.1016/j.tetlet.2008.06.001
日期:2008.8
A novel Mitsunobu-based protocol has been developed for the synthesis of a variety of symmetrical and unsymmetrical trithiocarbonates from primary, secondary and tertiary thiols using carbon disulfide, in good to excellent yields. This protocol is mild and efficient compared to other reported methods.
A compound of formula (I)
1
wherein R
1
and R
2
represent a hydrogen atom or an aryl, a heterocyclic, an alkyl or an alkenyl, which are optionally substituted, R
3
represents a hydrogen atom or a hydroxyl and X
1
and X
2
represent an oxygen atom, a sulfur atom or a nitrogen containing group, a pharmaceutically acceptable derivative thereof or a salt thereof. A pharmaceutical composition comprising the compound for the prevention or treatment of a bacterial infection. A method for the prevention or treatment of a bacterial infection in a warm-blooded animal comprising administering a pharmacologically effective amount of the compound.
OVERCOAT COMPOSITIONS AND METHODS FOR PHOTOLITHOGRAPHY
申请人:Rohm and Haas Electronic Materials Korea Ltd.
公开号:US20170090287A1
公开(公告)日:2017-03-30
Topcoat compositions are provided that are suitably applied above a photoresist composition. Preferred topcoat compositions comprise a first polymer comprising first units comprising a reactive nitrogen-containing moiety spaced from the polymer backbone, wherein the nitrogen-containing moiety produces a basic cleavage product during lithographic processing of the photoresist composition.
Disclosed are compounds of formula X,
1
which are useful in treating Alzheimer's disease and other similar diseases. Pharmaceutical compositions comprising compounds of formula X and methods of preparing the compounds of formula X are also disclosed.