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O-Methyl Dolutegravir

O-Methyl Dolutegravir Structure
CAS No.
1335210-35-9
Chemical Name:
O-Methyl Dolutegravir
Synonyms
BNKY001-DL03;O-Methyl Dolutegravir;Dolutegravir O-Methyl Imp;Doultegravir O methyl impurity;Dolutegravir O-Methyl Impurity;(4r,12as)-n-((2,4-difluorophenyl)methyl)-3,4,6,8,12,12a-hexa...;(3S,7R)-N-[(2,4-difluorophenyl)methyl]-11-methoxy-7-methyl-9,12-dioxo-4-oxa-1,8-diazatricyclo[8.4.0.03,8]tetradeca-10,13-diene-13-carboxamide;(4R,12aS)-N-(2,4-Difluorobenzyl)-7-Methoxy-4-Methyl-6,8-dioxo-3,4,6,8,12,12a-hexahydro-2H-[1,3]oxazino[3,2-d]pyrido[1,2-a]pyrazine-9-carboxaMide;(4R,12AS)-N-(2,4-difluorobenzyl)-7-methoxy-4-methyl-6,8-dioxo-3,4,6,8,12,12a-hexahydro-2H-pyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazine-9-carboxamide;(4R,12aS)-N-(2,4-difluorobenzyl)-7-methoxy-4-methyl-6,8-dioxo-3,4,6,8,12,12a-hexahydro-2H-pyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazine-9-car boxamide
CBNumber:
CB42729257
Molecular Formula:
C21H21F2N3O5
Molecular Weight:
433.41
MOL File:
1335210-35-9.mol
MSDS File:
SDS
Modify Date:
2024/3/19 9:49:09

O-Methyl Dolutegravir Properties

Boiling point 684.3±55.0 °C(Predicted)
Density 1.45±0.1 g/cm3(Predicted)
storage temp. Sealed in dry,Room Temperature
pka 10.70±0.40(Predicted)

SAFETY

Risk and Safety Statements

Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P305+P351+P338
HS Code  38220090

O-Methyl Dolutegravir Chemical Properties,Uses,Production

Description

Dolutegravir intermediate is a new synthetic intermediate of Dolutegravir. Dolutegravir is an integrase inhibitor used to treat human immunodeficiency virus (HIV)-1 infection.

Uses

(4R,12AS)-N-(2,4-Difluorobenzyl)-7-methoxy-4-methyl-6,8-dioxo-3,4,6,8,12,12a-hexahydro-2H-pyrido[1'',2'':4,5]pyrazino[2,1-b][1,3]oxazine-9-carboxamide is an intermediate in the preparation of dolutegravir, an integrase inhibitor for HIV-1 infection therapy.

Synthesis

(3S,11aR)-3-methyl-6-(methyloxy)-5,7-dioxo-2,3,5,7,11,11a- hexahydro[1,3]oxazolo [3,2-a]pyrido[1,2-d]pyrazine-8-carboxylic acid (100 gm) and carbonyl dimidazole (78.89 gm) was suspended in acetonitrile (1000 mL). The mixture was heated to 75°C and stirred for 1 hour. The resulting solution was cooled to a temperature of 20°C and treated with 2,4- difluorobenzyl amine solution (55.2 gm was dissolved in 200 mL of acetonitrile). The reaction mixture was maintained for 2 hours, concentrated, and the compound was extracted with ethyl acetate (1000 mL). Isopropyl alcohol (500 mL) was added at 40°C, stirred the reaction mass for 30 minutes at a temperature of 50°C, and cooled the reaction mass to 25°C. The reaction mixture was maintained for 8 hours at the same temperature. The product O-Methyl Dolutegravir was collected by filtration and dried under vacuum (85 gm).
O-Methyl Dolutegravir

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(4R,12aS)-N-(2,4-Difluorobenzyl)-7-Methoxy-4-Methyl-6,8-dioxo-3,4,6,8,12,12a-hexahydro-2H-[1,3]oxazino[3,2-d]pyrido[1,2-a]pyrazine-9-carboxaMide (4R,12aS)-N-[(2,4-Difluorophenyl)methyl]-3,4,6,8,12,12a-hexahydro-7-methoxy-4-methyl-6,8-dioxo-2H-pyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazine-9-carboxamide (4R,12aS)-N-(2,4-difluorobenzyl)-7-methoxy-4-methyl-6,8-dioxo-3,4,6,8,12,12a-hexahydro-2H-pyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazine-9-car boxamide Dolutegravir O-Methyl Imp Dolutegravir impurity 5/O-Methyl Dolutegravir/(4R,12aS)-N-[(2,4-Difluorophenyl)methyl]-3,4,6,8,12,12a-hexahydro-7-methoxy-4-methyl-6,8-dioxo-2H-pyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazine-9-carboxamide 2H-Pyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazine-9-carboxamide, N-[(2,4-difluorophenyl)methyl]-3,4,6,8,12,12a-hexahydro-7-methoxy-4-methyl-6,8-dioxo-, (4R,12aS)- O-Methyl Dolutegravir BNKY001-DL03 Dolutegravir O-Methyl Impurity Doultegravir O methyl impurity (4r,12as)-n-((2,4-difluorophenyl)methyl)-3,4,6,8,12,12a-hexa... (3S,7R)-N-[(2,4-difluorophenyl)methyl]-11-methoxy-7-methyl-9,12-dioxo-4-oxa-1,8-diazatricyclo[8.4.0.03,8]tetradeca-10,13-diene-13-carboxamide (4R,12AS)-N-(2,4-difluorobenzyl)-7-methoxy-4-methyl-6,8-dioxo-3,4,6,8,12,12a-hexahydro-2H-pyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazine-9-carboxamide 1335210-35-9 C21H21F2N3O5 CMLLYL