Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Paul Angell"'
Publikováno v:
Day 2 Wed, March 25, 2020.
The initial proposal for abandoning a subsea field in the North Sea was to carry out the pre-abandonment work from the Light Well Intervention Vessel (LWIV) followed by the complete Plug and Abandon (P&A) operation conducted by a Mobile Offshore Dril
Autor:
Karen Elaine Sexton, Venkataraman Thanabal, Ann McCarthy, Leroy Lu, Erli Zhang, Maria N. Nguyen, Downs Victoria Leigh, Paul R. Keller, Mark L. Boys, Richard Gowan, Patrick I. McConnell, Edmund L. Ellsworth, Neil Raheja, Richard B. Gilbertsen, Hena Mostafa, Filzen Gary Frederick, N. A. Payne, Feng Bian, Huifen Chen, John D. Knafels, Samarendra N. Maiti, Elena M. Drummond, Stephen Douglas Barrett, Zhi Wang, Larry D. Bratton, Diane Alessi, Deepak S. Lala, Stephen Fakhoury, Sneha Patel, Barry C. Finzel, Susan Ciotti, Iula Donna Michele, Fang Sun, Paul Angell, Xiao Dan Ren, David Pocalyko, Rone Eisma, Kramer James Bernard, Catherine R. Kostlan, Christopher L. Chio
Publikováno v:
Bioorganic & Medicinal Chemistry Letters. 22:3392-3397
A series of 2-(1H-pyrazol-1-yl)pyridines are described as inhibitors of ALK5 (TGFβ receptor I kinase). Modeling compounds in the ALK5 kinase domain enabled some optimization of potency via substitutions on the pyrazole core. One of these compounds P
Publikováno v:
The Journal of Organic Chemistry. 72:6606-6609
The indium(III)-catalyzed Markovnikov addition of active methylene compounds to terminal alkynes has been expanded further to include diethyl acetamidomalonate. This reaction has been studied, and a practical approach to β-branched α-amino acids wa
Publikováno v:
Tetrahedron. 61:7807-7813
The indium(III) triflate mediated addition of active methylene compounds to terminal alkynes has been expanded to use malonates and low boiling terminal alkynes to form the Markovnikov addition products. Indium(III) chloride and indium(III) bromide w
Publikováno v:
Tetrahedron Letters. 46:2029-2032
The first Mukaiyama aldol reaction on mucohalic acid ( 1a / b ) has been achieved. Reaction of 1 with various ketene silyl acetals or silyl enol ethers in the presence of a Lewis acid provides the γ-substituted γ-butenolides in good to excellent yi
Autor:
C. Richard Nevill, Paul Angell
Publikováno v:
Tetrahedron Letters. 39:5671-5674
Oxidation of carbamates with catalytic RuO4, generated from RuO2 and NaBrO3, provides the corresponding acyl carbamates, which can be reduced with NaBH4 to provide alcohols. Application of this methodology to L-lysine provides (S)-6-hydroxynorleucine
Autor:
Paul Angell, C. R. Jun. Nevill
Publikováno v:
ChemInform. 29
Publikováno v:
Tetrahedron Letters. 31:4321-4324
An efficient, highly stereoselective synthesis of (+)-castanospermine (1) has been achieved from 1,2-0-isopropylidene-α-Dglucofuranurono-6,3-lactone (2).
Publikováno v:
All Days.
The Valhall field has been producing oil for 25 years. The completion strategy of the field has continuously been developed over the years, with cased hole completions with multiple propped fractures as main completion strategy since the mid 1990s. T
Publikováno v:
The Journal of organic chemistry. 72(17)
The indium(III)-catalyzed Markovnikov addition of active methylene compounds to terminal alkynes has been expanded further to include diethyl acetamidomalonate. This reaction has been studied, and a practical approach to beta-branched alpha-amino aci