Photoinduced electron transfer (PET) promoted cyclisations of 1-[N-alkyl-N-(trimethylsilyl)methyl]amines tethered to proximate olefin: mechanistic and synthetic perspectives
摘要:
Upon PET reaction, amines of type 1 undergo efficient cyclisations to produce pyrrolidines and piperidines. Mechanistically, involvement of delocalised alpha-silylmethyl amine radical cation as reactive intermediate in such cyclisations are described.
[EN] SUBSTITUTED CYCLOPROPYL-2,2'-BIPYRIMIDINYL COMPOUNDS, ANALOGUES THEREOF, AND METHODS USING SAME<br/>[FR] COMPOSÉS DE CYCLOPROPYL-2,2'-BIPYRIMIDINYL SUBSTITUÉS, ANALOGUES DE CEUX-CI, ET PROCÉDÉS LES UTILISANT
申请人:ARBUTUS BIOPHARMA INC
公开号:WO2021025976A1
公开(公告)日:2021-02-11
The present disclosure includes novel substituted cyclopropyl-2,2'-bipyrimidinyl compounds, and compositions comprising the same, that can be used to treat or prevent hepatitis B virus (HBV) infection and/or hepatitis D virus (HDV) infection in a patient.
作者:Tayeb Belhocine、Stewart A. Forsyth、H. Q. Nimal Gunaratne、Mark Nieuwenhuyzen、Peter Nockemann、Alberto V. Puga、Kenneth R. Seddon、Geetha Srinivasan、Keith Whiston
DOI:10.1039/c4cp05936k
日期:——
metathesis from the corresponding iodides. All [NTf2]− salts are liquids at room temperature. [Rmmβpip]X (X− = I−, [CF3CO2]− or [OTf]−) are low-melting solids when R = alkyl, but room temperature liquids upon introduction of ether functionalities on R. Neither of the 3-methylpiperdinium ionic liquids showed any signs of crystallisation, even well below 0 °C. Some related non-C-substituted piperidinium and pyrrolidinium
[EN] SOLID STATE FORMS OF LUCERASTAT SALTS AND PROCESS FOR PREPARATION THEREOF<br/>[FR] FORMES À L'ÉTAT SOLIDE DE SELS DE LUCÉRASTAT ET LEUR PROCÉDÉ DE PRÉPARATION
申请人:TEVA PHARMACEUTICALS INT GMBH
公开号:WO2021061701A1
公开(公告)日:2021-04-01
The present disclosure encompasses solid state forms of Lucerastat, in embodiments crystalline Lucerastat: L-Pyroglutamic acid, crystalline Lucerastat: Salicylic acid, crystalline Lucerastat: Fumaric acid, crystalline Lucerastat: Benzoic acid and crystalline Lucerastat: o-Acetylsalicylic acid, solid state form thereof, processes for preparation thereof, and pharmaceutical compositions thereof.
Method for Preparation of Cyano Compounds of the 13th Group with a Lewis Acid
申请人:LONZA LTD.
公开号:US20160229874A1
公开(公告)日:2016-08-11
The invention discloses a method for preparation of cyano compounds of the 13th group of the periodic table with 1, 2, 3 or 4 cyano residues, represented by formula (I): [Cat
n+
][(Z
1
F
4-m
(CN)
m
)
−
]
n
by a reaction of [(Z
1
F
4
)
−
] with trimethylsilylcyanide in the presence of a Lewis acid and in the presence of the cation Cat
n+
; Cat
n+
is a cation, Z
1
is B, Al, Ga, In or Tl, m is 1, 2, 3 or 4 and n is 1, 2, 3 or 4.
[EN] METHOD FOR PREPARATION OF CYANO COMPOUNDS OF BORON WITH A BRONSTEDT ACID<br/>[FR] PROCÉDÉ DE PRÉPARATION DE COMPOSÉS CYANO DE BORE AVEC UN ACIDE DE BRONSTEDT
申请人:LONZA AG
公开号:WO2016162400A1
公开(公告)日:2016-10-13
The invention discloses a method for preparation of cyano compounds of boron with 1, 2, 3 or 4 cyano residues, represented by formula (I): [Catn+] [(BF4-m(CN)m)- ]n by a reaction of compound of formula (A1) with trimethylsilylcyanide in the presence of a Bronstedt acid; [Catn+] [(BF4)- ]n (A1); n+ Cat is a cation, m is 1, 2, 3 or 4 and n is 1, 2, 3 or 4. In a specific embodiment, the method is for prepration of the following three compounds: [(n-Bu)4N][BF(CN)3] (1), [(n-Pr)3NH][BF(CN)3] (2), [(n-Pr)3NH][B(CN)4] (3).