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【结 构 式】

【分子编号】38403

【品名】4-fluorophenylboronic acid

【CA登记号】1765-93-1

【 分 子 式 】C6H6BFO2

【 分 子 量 】139.9218432

【元素组成】C 51.5% H 4.32% B 7.73% F 13.58% O 22.87%

与该中间体有关的原料药合成路线共 7 条

合成路线1

该中间体在本合成路线中的序号:

The biphenyl side chain of LY293111 can be constructed as illustrated in Scheme 19757001a: 4-Benzyloxy-2-hydroxyacetophenone (I) is alkylated with 1-bromo-3-chloropropane to provide compound (II). Reduction of the keto group with triethylsilane in trifluoroacetic acid provides (III), which is then regiospecifically brominated with N-bromosuccinimide to give (IV). A Suzuki biaryl coupling of (IV) with 4-fluorophenylboronic acid is used to prepare chloride (V), which is treated with sodium iodide in refluxing 2-butanone to give intermediate iodide (VI).

1 Schmittling, E.A.; Sawyer, J.S.; Synthesis of diaryl ethers, diaryl thioethers, and diaryl amines mediated by potassium fluoride-alumina and 18-crown-6. J Org Chem 1993, 58, 3229-30.
2 Sawyer, J.S.; Bach, N.J.; Baker, S.R.; et al.; Synthetic and structure/activity studies on acid-substituted 2-arylphenols: The discovery of 2-[2-propyl-3-[3-[2-ethyl-4-(4-fluorophenyl)-5-hydroxyphenoxy]propoxy]phenoxy]benzoic acid, a high-affinity leukotriene B4 receptor antagonist. J Med Chem 1995, 38, 22, 4411-32.
3 Sawyer, J.S.; Baldwin, R.F.; Sofia, M.J.; et al.; Biphenylyl-substituted xanthones: Highly potent leukotriene B4 receptor antagonists. J Med Chem 1993, 36, 24, 3982-4.
4 Sawyer, J.S.; LY-293111 Sodium. Drugs Fut 1996, 21, 6, 610.
5 Sawyer, J.S.; Baldwin, R.F.; Saussy, D.L. Jr.; Froelich, L.L.; Jackson, W.T.; Diaryl ether/carboxylic acid derivatives of LY255283: Receptor antagonists of leukotriene B4. Bioorg Med Chem Lett 1993, 3, 10, 1985-90.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
10358 1-Bromo-3-chloropropane 109-70-6 C3H6BrCl 详情 详情
38403 4-fluorophenylboronic acid 1765-93-1 C6H6BFO2 详情 详情
(I) 16208 4'-Benzyloxy-2'-hydroxyacetophenone; 1-[4-(Benzyloxy)-2-hydroxyphenyl]-1-ethanone 29682-12-0 C15H14O3 详情 详情
(II) 16209 1-[4-(benzyloxy)-2-(3-chloropropoxy)phenyl]-1-ethanone C18H19ClO3 详情 详情
(III) 16210 4-(benzyloxy)-2-(3-chloropropoxy)-1-ethylbenzene; benzyl 3-(3-chloropropoxy)-4-ethylphenyl ether C18H21ClO2 详情 详情
(IV) 16211 benzyl 2-bromo-5-(3-chloropropoxy)-4-ethylphenyl ether; 1-(benzyloxy)-2-bromo-5-(3-chloropropoxy)-4-ethylbenzene C18H20BrClO2 详情 详情
(V) 16212 benzyl 4-(3-chloropropoxy)-5-ethyl-4'-fluoro[1,1'-biphenyl]-2-yl ether; 2-(benzyloxy)-4-(3-chloropropoxy)-5-ethyl-4'-fluoro-1,1'-biphenyl C24H24ClFO2 详情 详情
(VI) 16213 benzyl 5-ethyl-4'-fluoro-4-(3-iodopropoxy)[1,1'-biphenyl]-2-yl ether; 2-(benzyloxy)-5-ethyl-4'-fluoro-4-(3-iodopropoxy)-1,1'-biphenyl C24H24FIO2 详情 详情

合成路线2

该中间体在本合成路线中的序号:(V)

Aldol condensation between dimethyl 1,3-acetonedicarboxylate (I) and 3,5-heptanedione (II) produced dimethyl 4,6-diethyl-2-hydroxy-1,3-benzenedicarboxylate (III). After conversion of phenol (III) to the corresponding aryl triflate (IV), Suzuki coupling with 4-fluorobenzeneboronic acid (V) yielded the biphenyl derivative (VI). The diisopropyl compound (VII) was then obtained by methylation of (VI) at the benzylic position using iodomethane and LDA. Partial reduction of diester (VII) with Red-Al?gave rise to the hydroxy ester (VIII), which was further oxidized to aldehyde (IX) by treatment with pyridinium chlorochromate. Wittig reaction of aldehyde (IX) with ethyl triphenylphosphonium bromide furnished the propenyl compound (X)

2 Schmidt, G.; Wolanin, D.J.; Bischoff, H.; Schoen, W.R.; Angerbauer, R.; Schmidt, D.; Kramss, R.H.; Wohlfeil, S.; Brandes, A.; Muller-Gliemann, M.; Lease, T.G.; Ladouceur, G.H.; Osterhout, M.H.; Hertzog, D.L.; Cook, J.H. II (Bayer AG; Bayer Corp.); Substd. pyridines and biphenyls as anti-hypercholesterinemic, anti-hyperlipoproteinemic and anti-hyperglycemic agents. WO 9804528 .
1 Wolanin, D.J.; Schoen, W.R.; Kramss, R.H.; Lease, T.G.; Ladouceur, G.H.; Osterhout, M.H.; Hertzog, D.L.; Cook, J.H. II (Bayer AG; Bayer Corp.); Substd. biphenyls. US 6218431 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 22692 dimethyl 3-oxopentanedioate 1830-54-2 C7H10O5 详情 详情
(II) 39689 3,5-heptanedione 7424-54-6 C7H12O2 详情 详情
(III) 60521 dimethyl 4,6-diethyl-2-hydroxyisophthalate C14H18O5 详情 详情
(IV) 60522 dimethyl 4,6-diethyl-2-{[(trifluoromethyl)sulfonyl]oxy}isophthalate C15H17F3O7S 详情 详情
(V) 38403 4-fluorophenylboronic acid 1765-93-1 C6H6BFO2 详情 详情
(VI) 60523 dimethyl 3,5-diethyl-4'-fluoro[1,1'-biphenyl]-2,6-dicarboxylate C20H21FO4 详情 详情
(VII) 60524 dimethyl 4'-fluoro-3,5-diisopropyl[1,1'-biphenyl]-2,6-dicarboxylate C22H25FO4 详情 详情
(VIII) 60525 methyl 4'-fluoro-6-(hydroxymethyl)-3,5-diisopropyl[1,1'-biphenyl]-2-carboxylate C21H25FO3 详情 详情
(IX) 60526 methyl 4'-fluoro-6-formyl-3,5-diisopropyl[1,1'-biphenyl]-2-carboxylate C21H23FO3 详情 详情
(X) 60527 methyl 4'-fluoro-3,5-diisopropyl-6-[(E)-1-propenyl][1,1'-biphenyl]-2-carboxylate C23H27FO2 详情 详情

合成路线3

该中间体在本合成路线中的序号:(II)

This compound has been obtained by condensation of 1-(4-bromobenzyl)imidazole (I) with 4-fluorophenylboronic acid (II) by means of Pd(PPh3)4 and Na2CO3 in refluxing toluene/ethanol.

1 Wachall, B.G.; et al.; Imidazole substituted biphenyls: A new class of highly potent and in vivo active inhibitors of P450 17 as potential therapeutics for treatment of prostate cancer. Bioorg Med Chem 1999, 7, 9, 1913.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 38402 1-(4-bromobenzyl)-1H-imidazole C10H9BrN2 详情 详情
(II) 38403 4-fluorophenylboronic acid 1765-93-1 C6H6BFO2 详情 详情

合成路线4

该中间体在本合成路线中的序号:(IV)

(S)-7-Hydroxy-1,2,3,4-tetrahydroqinoline-3-carboxylic acid (I) is N-protected by means of di-tert-butyldicarbonate (Boc2O) and Na2CO3 in H2O/dioxane and then converted into methyl ester derivative (II) by treatment with trimethylsilyl diazomethane (TMSCNH2). Reaction of (II) with triflic anhydride (Tf2O) and Et3N in CH2Cl2 yields triflate (III), which is then coupled to boronic acid (IV) by Suzuki cross-coupling reaction in the presence of Pd(PPh3)4 and Na2CO3 in toluene/EtOH, providing derivative (V). Boc removal in (V) by treatment with HCl/HOAc followed by coupling with N-Boc-2,6-dimethyl-D/L-tyrosine (VIa-b) by means of EDC, HOBt, DIEA and DMAP in DMF furnishes protected compound (VIIa-b). Compound (VIIa-b) is hydrolyzed with LiOH and N-deprotected by means of HCl/HOAc to afford a mixture of diastereomers (VIIIa-b) from which the target compound is separated by reverse-phase HPLC.

1 Brown, W.; Mischki, T.; Butterworth, J.; Schmidt, R.; McGlory, A.; Payza, K.; St-Onge, S.; Labarre, M.; Pagé, D.; Novel Dmt-Tic dipeptide analogues as selective delta-opioid receptor antagonists. Bioorg Med Chem Lett 2000, 10, 2, 167.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(VIIa) 44185 5,6-diamino-3-methyl-1-phenyl-2,4(1H,3H)-pyrimidinedione C11H12N4O2 详情 详情
(VIa) 44813 (2R)-2-[(tert-butoxycarbonyl)amino]-3-(4-hydroxy-2,6-dimethylphenyl)propionic acid C16H23NO5 详情 详情
(VIb) 44814 (2S)-2-[(tert-butoxycarbonyl)amino]-3-(4-hydroxy-2,6-dimethylphenyl)propionic acid C16H23NO5 详情 详情
(VIIb) 44816 methyl (3S)-2-[(2R)-2-[(tert-butoxycarbonyl)amino]-3-(4-hydroxy-2,6-dimethylphenyl)propanoyl]-7-(4-fluorophenyl)-1,2,3,4-tetrahydro-3-isoquinolinecarboxylate C33H37FN2O6 详情 详情
(VIIIa) 44817 (3S)-2-[(2R)-2-amino-3-(4-hydroxy-2,6-dimethylphenyl)propanoyl]-7-(4-fluorophenyl)-1,2,3,4-tetrahydro-3-isoquinolinecarboxylic acid C27H27FN2O4 详情 详情
(VIIIb) 44818 (3S)-2-[(2S)-2-amino-3-(4-hydroxy-2,6-dimethylphenyl)propanoyl]-7-(4-fluorophenyl)-1,2,3,4-tetrahydro-3-isoquinolinecarboxylic acid C27H27FN2O4 详情 详情
(I) 44809 (3S)-7-hydroxy-1,2,3,4-tetrahydro-3-isoquinolinecarboxylic acid 128502-56-7 C10H11NO3 详情 详情
(II) 44810 2-(tert-butyl) 3-methyl (3S)-7-hydroxy-3,4-dihydro-2,3(1H)-isoquinolinedicarboxylate C16H21NO5 详情 详情
(III) 44811 2-(tert-butyl) 3-methyl (3S)-7-[[(trifluoromethyl)sulfonyl]oxy]-3,4-dihydro-2,3(1H)-isoquinolinedicarboxylate C17H20F3NO7S 详情 详情
(IV) 38403 4-fluorophenylboronic acid 1765-93-1 C6H6BFO2 详情 详情
(V) 44812 2-(tert-butyl) 3-methyl (3S)-7-(4-fluorophenyl)-3,4-dihydro-2,3(1H)-isoquinolinedicarboxylate C22H24FNO4 详情 详情

合成路线5

该中间体在本合成路线中的序号:(VII)

Condensation of methyl indole-4-carboxylate (I) with 2-nitroethyl acetate (II) produced the 3-nitroethyl indole (III). After reduction of the nitro group to amine (IV) using Zn and HCl, cyclization under basic conditions gave rise to lactam (V). Electrophilic bromination of (V) employing pyridinium tribromide furnished (VI). Finally, Suzuki coupling of bromide (VI) with 4-fluorobenzeneboronic acid (VII) yielded the title compound.

1 Thoresen, L.H.; Webber, S.E.; Tikhe, J.; Canan-Koch, S.S. (Agouron Pharmaceuticals, Inc.; Cancer Research Campaign Technology Ltd.); Tricyclic inhibitors of poly(ADP-ribose) polymerases. EP 1140936; WO 0042040 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 50446 Indole-4-carboxylic acid methyl ester 39830-66-5 C10H9NO2 详情 详情
(II) 50447 2-nitroethyl acetate C4H7NO4 详情 详情
(III) 50448 methyl 3-(2-nitroethyl)-1H-indole-4-carboxylate C12H12N2O4 详情 详情
(IV) 50449 methyl 3-(2-aminoethyl)-1H-indole-4-carboxylate C12H14N2O2 详情 详情
(V) 50450 1,3,4,5-tetrahydro-6H-azepino[5,4,3-cd]indol-6-one C11H10N2O 详情 详情
(VI) 50451 2-bromo-1,3,4,5-tetrahydro-6H-azepino[5,4,3-cd]indol-6-one C11H9BrN2O 详情 详情
(VII) 38403 4-fluorophenylboronic acid 1765-93-1 C6H6BFO2 详情 详情

合成路线6

该中间体在本合成路线中的序号:(VI)

3,4-Dimethoxybenzoic acid (I) is converted into oxazoline (II) by known methods. This compound is treated with BuLi and I2 in ethyl ether to yield the 2-iodo derivative (III), which is treated with POCl3 in hot pyridine to afford 2-iodo-3,4-dimethoxybenzonitrile (IV). The nitration of (IV) by means of nitronium tetrafluoroborate in acetonitrile provides 2-iodo-3,4-dimethoxy-6-nitrobenzonitrile (V), which is condensed with 4-fluorophenylboronic acid (VI) by means of Pd(PPh3)4 in toluene/ethanol to give the biphenyl derivative (VII). The reduction of the nitro group of (VII) by means of sodium dithionite in DMF/water yields the corresponding amino derivative (VIII), which is condensed with 1-acetyl-4-(morpholin-4-ylcarbonyl)perhydro-1,4-diazepine (IX) by means of POCl3 in dichloromethane to afford the adduct (X). Finally, this compound is cyclized by means of LDA in THF to provide the target quinoline derivative. The intermediate 1-acetyl-4-(morpholin-4-ylcarbonyl)perhydro-1,4-diazepine (IX) has been obtained as follows: The reaction of perhydro-1,4-diazepine (XI) with Boc2O in dichloromethane gives the monoprotected diazepine (XII), which is condensed with morpholin-4-yl-carbonyl chloride (XIII) by means of TEA in dichloromethane to yield the acylated diazepine (XIV). The deprotection of (XIV) by means of HCl in dichloromethane/methanol affords the deprotected diazepine (XV), which is finally acylated with acetic anhydride and TEA in dichloromethane to provide the target intermediate (IX).

1 Collis, A.J.; Fox, D.N.A.; Newman, J. (Pfizer Inc.); Quinoline and quinazoline cpds. useful in therapy. EP 0877734; JP 1999501668; US 6103738; WO 9723462 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 13439 3,4-Dimethoxybenzoic acid 93-07-2 C9H10O4 详情 详情
(II) 54071 2-(3,4-dimethoxyphenyl)-4,4-dimethyl-4,5-dihydro-1,3-oxazole; 4-(4,4-dimethyl-4,5-dihydro-1,3-oxazol-2-yl)-2-methoxyphenyl methyl ether n/a C13H17NO3 详情 详情
(III) 54072 2-(2-iodo-3,4-dimethoxyphenyl)-4,4-dimethyl-4,5-dihydro-1,3-oxazole; 3-(4,4-dimethyl-4,5-dihydro-1,3-oxazol-2-yl)-2-iodo-6-methoxyphenyl methyl ether n/a C13H16INO3 详情 详情
(IV) 54073 2-iodo-3,4-dimethoxybenzonitrile n/a C9H8INO2 详情 详情
(V) 54074 2-iodo-3,4-dimethoxy-6-nitrobenzonitrile n/a C9H7IN2O4 详情 详情
(VI) 38403 4-fluorophenylboronic acid 1765-93-1 C6H6BFO2 详情 详情
(VII) 54075 4'-fluoro-5,6-dimethoxy-3-nitro[1,1'-biphenyl]-2-carbonitrile n/a C15H11FN2O4 详情 详情
(VIII) 54076 3-amino-4'-fluoro-5,6-dimethoxy[1,1'-biphenyl]-2-carbonitrile n/a C15H13FN2O2 详情 详情
(IX) 54077 1-[4-(4-morpholinylcarbonyl)-1,4-diazepan-1-yl]-1-ethanone n/a C12H21N3O3 详情 详情
(X) 54078 4'-fluoro-5,6-dimethoxy-3-({(E)-1-[4-(4-morpholinylcarbonyl)-1,4-diazepan-1-yl]ethylidene}amino)[1,1'-biphenyl]-2-carbonitrile n/a C27H32FN5O4 详情 详情
(XI) 25030 1,4-diazepane 505-66-8 C5H12N2 详情 详情
(XII) 54079 tert-Butyl 1-homopiperazine carboxylate n/a C10H20N2O2 详情 详情
(XIII) 15847 4-morpholinecarbonyl chloride; Morpholine-4-carbonyl chloride 15159-40-7 C5H8ClNO2 详情 详情
(XIV) 54080 tert-butyl 4-(4-morpholinylcarbonyl)-1,4-diazepane-1-carboxylate n/a C15H27N3O4 详情 详情
(XV) 54081 1,4-diazepan-1-yl(4-morpholinyl)methanone n/a C10H19N3O2 详情 详情

合成路线7

该中间体在本合成路线中的序号:(XX)

In one method, metalation of 1-bromo-4-fluorobenzene (XI) with Mg in 2-MeTHF at 90 °C gives 4-fluorophenyl magnesium bromide (XII), which then couples with 2-bromothiophene (XIII) in the presence of NiCl2·dppe and AcOH in 2-MeTHF at 22 °C or in the presence of Pd(OAc)2 and DPPP in THF to yield 2-(4-fluorophenyl)thiophene (XIV). Finally, this compound undergoes Friedel–Crafts acylation with 5-iodo-2-methylbenzoic acid (XV) (initially chlorinated with SOCl2 in CH2Cl2) using AlCl3 in CH2Cl2, and subsequent reduction with (Me2SiH)2O in refluxing acetonitrile .
In another method, hydrolysis of methyl 5-bromo-2-methylbenzoate (XVI) with NaOH in MeOH at 50 °C gives rise to the benzoic acid (XVII) , which is then chlorinated with (COCl)2 in the presence of DMF in CH2Cl2 to yield 5-bromo-2-methylbenzoyl chloride (XVIII). Friedel–Crafts reaction of acyl chloride (XVIII) with 2-(4-fluorophenyl) thiophene (XIV) in the presence of AlCl3 in CH2Cl2 affords ketone (XIX), which is then reduced by means of Et3SiH and BF3·Et2O in CH2Cl2/acetonitrile to afford 2-(5-bromo-2-methylbenzoyl)-5-(4-fluorophenyl)thiophene (III) . Finally, compound (III) is iodinated with NaI and CuI in the presence of (MeNHCH2)2 in refluxing toluene/diglyme (IV) .
Alternatively, coupling of 4-fluorophenylboronic acid (XX) with either 2-bromothiophene (XIII) in the presence of PdCl2(PPh3)2 and Na2CO3 in dimethoxyethane at 75-80 °C or with 2-iodothiophene (XXI) in the presence of PdCl2(PPh3)2 at 50 °C affords 2-(4-fluorophenyl) thiophene (XIV) .

1 Abdel-Magid, A.F., Chisholm, M., Mehrman, S. et al. (Janssen Pharmaceutica NV; Mitsubishi Tanabe Pharma Corp.). Process for the preparation of compounds useful as inhibitors of SGLT. CN 101801371, EP 2200606, JP 2010539092, WO 2009035969.
2 Nomura, S., Ueta, K., Kawanishi, E. (Mitsubishi Tanabe Pharma Corp.). Novel compounds having inhibitory activity against sodium-dependant transporter. EP 1651658, JP 2007518683, JP 2008266328, WO 2005012326.
3 Nomura, S., Sakamaki, S., Hongu, M. et al. Discovery of canagliflozin, a novel C-glucoside with thiophene ring, as sodium-dependent glucose cotransporter 2 inhibitor for the treatment of type 2 diabetes mellitus. J Med Chem 2010, 53(17): 6355-60.
4 Filliers, W.F.M., Broeckx, R.L.M., Nieste, P.H.J., Hatsuda, M., Yoshinaga, M., Yada, M. (Janssen Pharmaceutica NV; Mitsubishi Tanabe Pharma Corp.). Process for the preparation of compounds useful as inhibitors of SGLT. US 2010099883, WO 2010043682.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(III) 68782 2-(5-bromo-2-methylbenzyl)-5-(4-fluorophenyl)thiophene 1030825-20-7 C18H14BrFS 详情 详情
(IV) 68783 2-(4-fluorophenyl)-5-(5-iodo-2-methylbenzyl)thiophene 898566-17-1 C18H14FIS 详情 详情
(XI) 29012 1-bromo-4-fluorobenzene 460-00-4 C6H4BrF 详情 详情
(XII) 13643 4-fluorophenyl magnesium bromide;Bromo(4-fluorophenyl)magnesium;bromo(p-fluorophenyl)Magnesium;p-Fluorophenylmagnesium bromide 352-13-6 C6H4BrFMg 详情 详情
(XIII) 13681 2-Bromothiophene 1003-09-4 C4H3BrS 详情 详情
(XIV) 68790 2-(4-fluorophenyl)thiophene 58861-49-7 C10H7FS 详情 详情
(XV) 68791 5-iodo-2-methylbenzoic acid;2-Methyl-5-iodobenzoicacid 54811-38-0 C8H7IO2 详情 详情
(XVI) 68792 methyl 5-bromo-2-methylbenzoate;methyl 5-bromo-o-toluate 79669-50-4 C9H9BrO2 详情 详情
(XVII) 68793 5-bromo-2-methylbenzoic acid;2-Methyl-5-bromobenzoic acid 79669-49-1 C8H7BrO2 详情 详情
(XVIII) 68794 5-bromo-2-methylbenzoyl chloride   C8H6BrClO 详情 详情
(XIX) 68795 (5-bromo-2-methylphenyl)(5-(4-fluorophenyl)thiophen-2-yl)methanone   C18H12BrFOS 详情 详情
(XX) 38403 4-fluorophenylboronic acid 1765-93-1 C6H6BFO2 详情 详情
(XXI) 43394 2-iodothiophene 3437-95-4 C4H3IS 详情 详情
Extended Information