116680-01-4 Usage
Originator
CellCept,Pharmacia,Italy
Uses
Transplantation (immunosuppressant).
Manufacturing Process
The synthesis of Mycophenolic acid (Canonica L. Et al., Tetrahedron Letters,
1971, N 28, p.2691-2692)By condensation of sodium diethylmalonate and 3-methylpent-3-en-2-on in
ethanol was obtained 2,3-dimethyl-4,6-dioxocyclohexanecarboxilic acid ethyl
ester, which was aromatised to 4,6-dihydroxy-2,3-dimethylbenzoic acid ethyl
ester (melting point 115-116°C). By treatment with diazomethane or with
CH3I and K2CO3 2-morpholin-4-ylethyl (E)-6-(4-hydroxy-6-methoxy-7-methyl-3-oxo-1H-isobenzofuran-5-yl)-4-methyl-hex-4-enoate hydrochloride was transformed into 2,4-dimethoxy-5,6-
dimethylbenzoic acid ethyl ester (melting point 62-63°C). The hydrolysis of
the ester group furnished the 2,4-dimethoxy-5,6-dimethylbenzoic acid
(melting point 208-210°C), which was converted into the amide: carbamic
acid 3-methoxy-4,5,6-trimethylphenyl ester (melting point 225-229°C).
Treatment of the amide with t-butylhypochlorite in methylene dichloride
yielded the corresponding N-chloroamide which was photolysed to the
intermediate iminolactone and was immediately hydrolized to 5,7-dimethoxy-
4-methyl-3H-isobenzofuran-1-one.2-morpholin-4-ylethyl (E)-6-(4-hydroxy-6-methoxy-7-methyl-3-oxo-1H-isobenzofuran-5-yl)-4-methyl-hex-4-enoate hydrochloride with hydriodic acid in acetic acid in the presence of red
phosphorous at reflux yielded 5,7-dihydroxy-4-methyl-3H-isobenzofuran-1-
one. Condensation of 6-bromo-4-methylhex-4-enoic acid methyl ester and
5,7-dihydroxy-4-methyl-3H-isobenzofuran-1-one with silver oxide in dioxane
at room temperature yielded 6-(4,6-dihydroxy-7-methyl-3-oxo-1,3-dihydroisobenzofuran-5-yl)-4-methylhex-4-enoic acid methyl ester (36% yield). At
last, monomethylation with diazomethane yield 6-(4-hydroxy-6-methoxy-7-
methyl-3-oxo-1,3-dihydro-isobenzofuran-5-yl)-4-methylhex-4-enoic acid methyl ester, which was hydrolysed with aqueous sodium hydroxide to 6-(4-
hydroxy-6-methoxy-7-methyl-3-oxo-1,3-dihydro-isobenzofuran-5-yl)-4-
methylhex-4-enoic acid (Mycophenolic acid).Mycophenolic acid may be obtained by the fermentation broth of Pennicillium
brevicompactum. The synthesis of Mycophenolate mofetil (Patent U.S.
4,753,935). The mixture of Mycophenolic acid (32.0 g), thionyl chloride (25.0
ml) and DMF (0.3 ml) in dichloromethane (250 ml) was stirred at room
temperature for 3 hours, after which the volatile components were removed
under vacuum to afford mycophenolic acid chloride as an oil. The
mycophenolic acid chloride oil was dissolved in dichloromethane (50.0 ml) and
added to the chilled solution of morpholinoethanol (30.5 ml) in
dichloromethane (250 ml). After stirring for 90 min at 4°C, the reaction
mixture was washed with water and then with aqueous sodium bicarbonate.
The organic solution was dried with sodium sulfate and evaporated to yield
Mycophenolate mofetil: morpholinoethyl E-6-(1,3-dihydro-4-hydroxy-6-
methoxy-7-methyl-3-oxo-5-isobenzofuranyl)-4-methyl-4-hexenoate (melting
point 93-94°C).The product (38.0 g) was dissolved in isopropanol (200 ml) and the solution
was added to a solution of hydrogen chloride (10.0 g) in isopropanol (150 ml).
The hydrochloride of Mycophenolate mofetil was collected by filtration and
dried under vacuum (melting point 154-155°C).
Therapeutic Function
Antiarthritic, Immunosuppressive
Check Digit Verification of cas no
The CAS Registry Mumber 116680-01-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,6,6,8 and 0 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 116680-01:
(8*1)+(7*1)+(6*6)+(5*6)+(4*8)+(3*0)+(2*0)+(1*1)=114
114 % 10 = 4
So 116680-01-4 is a valid CAS Registry Number.
InChI:InChI=1/C23H31NO7/c1-15(5-7-19(25)30-13-10-24-8-11-29-12-9-24)4-6-17-21(26)20-18(14-31-23(20)27)16(2)22(17)28-3/h4,26H,5-14H2,1-3H3/b15-4+
116680-01-4Relevant academic research and scientific papers
USAGE OF MYCOPHENOLATE MOFETIL OR SALT THEREOF IN PREPARING DRUG FOR RESISTING AGAINST INFLUENZA VIRUS
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Paragraph 0048, (2016/03/14)
The present invention relates to a use of mycophenolate mofetil or a pharmaceutically acceptable salt thereof in the manufacture of a medicament against influenza virus. The present invention also relates to a use of mycophenolate mofetil or a pharmaceutically acceptable salt thereof in the manufacture of a medicament against drug-resistant influenza virus strains. The present invention is further related to a method for treating influenza in a subject, comprising administering to said subject an effective amount of mycophenolate mofetil or a pharmaceutically acceptable salt thereof.
PROCESS FOR THE PRODUCTION OF MYCOPHENOLATE MOFETIL
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Page/Page column 14, (2010/02/11)
The present invention relates to a new and economically attractive process for the production of mycophenolate mofetil in a high degree of pharmaceutically acceptable purity, which comprises the reaction of a reactive derivative of mycophenolic acid with 4-(2-hydroxyethyl)morpholine under acidic reaction conditions and the subsequent extraction of the pure mycophenolate mofetil through salt formation and release of the free base. A further aspect of the invention relates to the purification of mycophenolate mofetil by removing its by products, in particular its dimeric by-products, by means of treatment with a primary or secondary amine.
