13149-00-3Relevant articles and documents
Enzymatische Synthesen chiraler Bausteine aus prochiralen meso-Substraten: Herstellung von Methyl(hydrogen)-1,2-cycloalkandicarboxylaten
Schneider, Manfred,Engel, Norbert,Hoenicke, Petra,Heinemann, Gerd,Goerisch, Helmut
, p. 55 - 56 (1984)
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RECYCLABLE POLYMERS BASED ON RING-FUSED GAMMA-BUTYROLACTONES
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Page/Page column 34; 39, (2020/02/23)
The invention discloses a class of new polymers, trans-ring-fused poly(4-hydroxybutyrate)s (RF-P4HB) that exhibit a unique set of properties, including robust thermal stability and mechanical strength, quantitative recyclability to the building block monomers via thermolysis and/or chemical catalysis, and convenient production from the chemical ring-opening polymerization under ambient temperature and pressure. Another unique property is the formation of crystalline stereocomplexed polymers with high melting temperature upon mixing the two enantiomeric RF-P4HB chains via stereocomplexing co-crystallization. This invention also provides the corresponding ring-fused lactone monomer structures that enable the synthesis of the RF-P4HB polymers, through trans-fusing of rings to the parent γ-butyrolactone ring. Furthermore, a polymerization or copolymerization process for the synthesis of RF-P4HB polymers and copolymers is disclosed.
NOVEL HEPATITIS C VIRUS INHIBITORS
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Page/Page column 43, (2013/07/05)
The invention provides compounds of formula (I): wherein Rings A and A' are independently 5-membered optionally substituted aromatic heterocycles; Q is C(=O)NR1R1' or formula U is C(R4)2, O, S, S(=O)2, C(R4)2C(R4)2, CH2O, OCH2, CH2S, SCH2, CH2S(=O)2, S(=O)CH2 or C=C(Ru )2; X is CH2, CHR12, CR12R12, O, S, S(=O)2 or NRx; m is 0, 1, 2 or 3; n is 0, 1, 2 or 3; the other variables are as defined in the claims, which are of use in the treatment or prophylaxis of hepatitis C virus infection, and related aspects.