Abstract:
PROBLEM TO BE SOLVED: To provide a method for preparing quinoline-substituted carbonate and carbamate compounds which are important intermediates in the synthesis of a 6-O-substituted macrolide antibiotic material. SOLUTION: The carbonate or carbamate derivative expressed by the formula: R 1 -CH=CHCH 2 OC(O)-X-R 2 (I) is obtained by coupling a haloquinoline with propargyl alcohol in the presence of a base and a palladium-based catalyst to form an alkynol, reducing it to make an alkenol and then reacting it with an acylation reagent. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
The invention relates to a process for preparing quinoline-substituted carbonate and carbamate compounds, which are important intermediates in the synthesis of 6-O-substituted macrolide antibiotics. The process employs metal-catalyzed coupling reactions to provide a carbonate or carbamate of formula (I) or (II) or substrate that can be reduced to obtain the same.
Abstract:
Ηεφεύρεσηαφοράσεμιαμέθοδογιαπαρασκευήκινολινο-υποκατεστημένωνενώσεωνανθρακικούκαικαρβαμικού, οιοποίεςείναισημαντικάενδιάμεσαστηνσύνθεσητωναντιβιοτικών 6-O-υποκατεστημένουμακρολιδίου. Ημέθοδοςχρησιμοποιείτιςκαταλυόμενεςαπόμέταλλοαντιδράσειςσύζευξηςγιαναπαρέχειανθρακικόή καρβαμικότουτύπου (Ι) ή (II) ήυπόστρωμαπουμπορείναανάγεταιγιαναληφθούναυτά.
Abstract:
The invention relates to a process for preparing quinoline-substituted carbonate and carbamate compounds, which are important intermediates in the synthesis of 6-O-substituted macrolide antibiotics. The process employs metal-catalyzed coupling reactions to provide a carbonate or carbamate of formula (I) or (II) or a substrate that can be reduced to obtain the same.
Abstract:
The invention relates to a process for preparing quinoline-substituted carbonate and carbamate compounds, which are important intermediates in the synthesis of 6-O-substituted marcolide antibiotics. The process employs metal-catalyzed coupling reactions to provide a carbonate or carbamate of formula (I) or (II) or substrate that can be reduced to obtain the same.
Abstract:
The invention relates to a process for preparing quinoline-substituted carbonate and carbamate compounds, which are important intermediates in the synthesis of 6-O-substituted macrolide antibiotics. The process employs meta l- catalyzed coupling reactions to provide a carbonate or carbamate of formula (I) or (II) or a substrate that can be reduced to obtain the same.
Abstract:
The invention relates to a process for preparing carbonate and carbamate compounds, which are important intermediates in the synthesis of 6-O-substituted macrolide antibiotics. The process employs metal-catalyzed coupling reactions to provide a carbonate or carbamate of formula (I) or a substrate that can be reduced to obtain the same. €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒR 1 -CH=CHCH 2 OC(O)-X-R 2 €ƒ€ƒ€ƒ€ƒ€ƒ(I)
Abstract:
The invention relates to a process for preparing carbonate and carbamate compounds, which are important intermediates in the synthesis of 6-O-substituted macrolide antibiotics. The process employs metal-catalyzed coupling reactions to provide a carbonate or carbamate of formula (I) or a substrate that can be reduced to obtain the same. €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒR 1 -CH=CHCH 2 OC(O)-X-R 2 €ƒ€ƒ€ƒ€ƒ€ƒ(I)