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CAS 75-16-1

Methylmagnesium bromideBromo(methyl)magnesium

Codes: (IX)101438-68-a, (XV)101438-70-b, (III)700647-1-a, (XV)909096-1-b

Application context (from source-drug indications)

Breast cancerPaclitaxel/Encequidar mesylateAdenocarcinomaPaclitaxel/Encequidar mesylateAngiosarcomaPaclitaxel/Encequidar mesylateSolid tumourPaclitaxel/Encequidar mesylatePancreatic cancerPaclitaxelNon-small cell lung cancerPaclitaxelHodgkin's diseasePaclitaxelSeminomaPaclitaxelOvarian cancerPaclitaxelBreast cancerPaclitaxel蠕形螨性睑缘炎Lotilaner螨虫感染Lotilaner莱姆病LotilanerRosaceaLotilaner睑板腺功能障碍LotilanerNon-small cell lung cancerIruplinalkib

Source drugs (routes using this intermediate)

DrugTierExpiry
Paclitaxel/Encequidar mesylateTier C — Watch / trade-
PaclitaxelTier B — Position early-
LotilanerTier C — Watch / trade-
IruplinalkibTier C — Watch / trade-

Position in synthesis routes (up/downstream chain)

Ordered by route registration; left → right is the synthesis direction. The highlighted node is the current CAS; others link to their own profiles.

Paclitaxel/Encequidar mesylateOptimised routesteps: 10total yield: /
Paclitaxel/Encequidar mesylateOptimised routesteps: 4total yield: /
(aS)-(-)-1,1'-Bi-2-naphthol→(aS)-[1,1'-Binaphthalene]-2,2'-diyl bis(trifluoromethanesulfonate)→Methylmagnesium bromide→(aS)-2,2'-Dimethyl-1,1'-binaphthalene→(aS)-4-tert-Butyl-4,5-dihydro-3H-4lambda5-dinaphtho[2,1-c:1',2'-e]phosphepine-4-thione→(aS)-(4R,4'R)-4,4'-Di-tert-butyl-4,4',5,5'-tetrahydro-3H,3'H-[3,3'-bi-4lambda5-dinaphtho[2,1-c:1',2'-e]phosphepine]-4,4'-dithione
PaclitaxelOptimised routesteps: 4total yield: /
(aS)-(-)-1,1'-Bi-2-naphthol→(aS)-[1,1'-Binaphthalene]-2,2'-diyl bis(trifluoromethanesulfonate)→Methylmagnesium bromide→(aS)-2,2'-Dimethyl-1,1'-binaphthalene→(aS)-4-tert-Butyl-4,5-dihydro-3H-4lambda5-dinaphtho[2,1-c:1',2'-e]phosphepine-4-thione→(aS)-(4R,4'R)-4,4'-Di-tert-butyl-4,4',5,5'-tetrahydro-3H,3'H-[3,3'-bi-4lambda5-dinaphtho[2,1-c:1',2'-e]phosphepine]-4,4'-dithione
LotilanerOptimised routesteps: 8total yield: /
4-Methylthiophene-2-carboxylic acid→N-Methoxy-N,4-dimethylthiophene-2-carboxamide→Bromo(methyl)magnesium→1-(4-Methylthiophen-2-yl)ethan-1-one→3-(5-Bromo-4-methylthiophen-2-yl)-5-(3,4,5-trichlorophenyl)-5-(trifluoromethyl)-4,5-dihydro-1,2-oxazole→1-(5-Bromo-4-methylthiophen-2-yl)ethan-1-one→2,2,2-Trifluoro-1-(3,4,5-trichlorophenyl)ethan-1-one→1-(5-Bromo-4-methylthiophen-2-yl)-4,4,4-trifluoro-3-(3,4,5-trichlorophenyl)but-2-en-1-one→Amino alcohol hydrochloride→3-Methyl-5-[5-(3,4,5-trichlorophenyl)-5-(trifluoromethyl)-4,5-dihydro-1,2-oxazol-3-yl]thiophene-2-carboxylic acid→3-Methyl-5-[(5S)-5-(3,4,5-trichlorophenyl)-5-(trifluoromethyl)-4,5-dihydro-1,2-oxazol-3-yl]thiophene-2-carboxylic acid→2-Amino-N-(2,2,2-trifluoroethyl)acetamide hydrochloride→5-Bromo-1,2,3-trichlorobenzene→(3,4,5-Trichlorophenyl)magnesium bromide→2,2,2-Trifluoro-N,N-dimethylacetamide

Intermediates available on this site

Side-by-side comparison of all listed offers on this CAS; price bands are list-price ranges, final price subject to RFQ confirmation.

SupplierProductPrice bandMOQLead timeQualificationsAction
Unibest Nantong cGMP Site2-bromo-3-methyl-5-acetylthiophene
Pharmaceutical Intermediates
On requestOn requestOn request
—
Unibest Taizhou GMP-like Sitemethyl 5-acetyl-3-methylthiophene-2-carboxylate
Pharmaceutical Intermediates
On requestOn requestOn request
—
Qualified Partner — East China API Works5-acetyl-3-methyl-2-Thiophenecarboxylic acid
Pharmaceutical Intermediates
On requestOn requestOn request
—

This is a CAS-level registry record: registrations across routes are merged. Supplier offers and buyer demands will be matched on this CAS as the primary key.