10035-16-2

Basic information

• Product Name: 1-Benzofuran-5-carbaldehyde
• Synonyms: 1-BENZOFURAN-5-CARBALDEHYDE;5-FORMYLBENZO[BETA]FURAN;5-FORMYLBENZO(B)FURAN;5-Formylbenzofuran;Benzofuran-5-carboxaldehyde;Benzofurancarbaldehyde;Benzo[b]furan-5-carboxaldehyde 96%;5-Formylbenzo[beta]furan, min. 96 %
• CAS NO: 10035-16-2
• Molecular Formula: C₉H₆O₂
• Molecular Weight: 146.14
• Product Categories: Furan&Benzofuran;API intermediates
• Mol File: 10035-16-2.mol
• Article Data: 21

Chemical Properties

• Melting Point: 50.5
• Boiling Point: 70-74°C 0,15mm
• Flash Point: 110.2 °C
• Appearance: Colorless to light yellow liquid
• Density: 1.238 g/cm³
• Vapor Pressure: 0.0203mmHg at 25°C
• Refractive Index: 1.651
• Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C
• CAS DataBase Reference: 1-Benzofuran-5-carbaldehyde(CAS DataBase Reference)
• NIST Chemistry Reference: 1-Benzofuran-5-carbaldehyde(10035-16-2)
• EPA Substance Registry System: 1-Benzofuran-5-carbaldehyde(10035-16-2)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36/37/39-37/39
• HazardClass: IRRITANT
• Hazardous Substances Data: 10035-16-2(Hazardous Substances Data)

Usage

Chemical Properties

Colorless to light yellow liqui

Uses

1-Benzofuran-5-carbaldehyde is a building block used as a reactant in the synthetic preparation of benzofuranyl oxadiazoles as inhibitors of glycogen synthase kinase-3β with good brain permeability. It is also used in the synthesis of pyrroloquinolone PDE5 inhibitors used for clinical studies on erectile dysfunction.

InChI:InChI=1/C9H6O2/c10-6-7-1-2-9-8(5-7)3-4-11-9/h1-6H

Synthetic route

2,3-dihydro-benzofuran-5-carbaldehyde (55745-70-5) → benzofuran-5-carbaldehyde (10035-16-2)

Conditions	Yield
With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile) In chlorobenzene at 80℃; for 1h;	83%
With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile) In chlorobenzene at 20 - 80℃; for 1h; Inert atmosphere;	75%
With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile) In chlorobenzene at 80℃; for 1h;	60%
With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile) In chlorobenzene at 80℃; for 4h; Cooling with ice;	55%

benzo[b]furan-5-carbonitrile (79002-39-4) → benzofuran-5-carbaldehyde (10035-16-2)

Conditions	Yield
Stage #1: benzo[b]furan-5-carbonitrile With diisobutylaluminium hydride In n-heptane; dichloromethane at -20 - -15℃; for 0.166667h; Stage #2: With hydrogenchloride; water In n-heptane; dichloromethane	78%
Stage #1: benzo[b]furan-5-carbonitrile With diisobutylaluminium hydride In n-heptane; dichloromethane at -20 - -15℃; for 0.166667h; Stage #2: With hydrogenchloride; water In n-heptane; dichloromethane at 20℃;	78%
With diisobutylaluminium hydride In dichloromethane at -15℃; for 0.166667h;

5-bromobenzofuran (23145-07-5) + N,N-dimethyl-formamide (68-12-2, 33513-42-7) → benzofuran-5-carbaldehyde (10035-16-2)

Conditions	Yield
Stage #1: 5-bromobenzofuran With tert.-butyl lithium In diethyl ether; pentane at -78℃; for 2h; Stage #2: N,N-dimethyl-formamide In diethyl ether; pentane for 1h;	75%
With tert.-butyl lithium In diethyl ether; pentane at -78 - 8℃; for 0.833333h;	70%
Stage #1: 5-bromobenzofuran With tert.-butyl lithium In diethyl ether; pentane at -78℃; for 0.333333h; Stage #2: N,N-dimethyl-formamide In diethyl ether; pentane at -78 - 20℃; for 0.5h; Product distribution / selectivity;	70%

N,N-dimethyl-formamide (68-12-2, 33513-42-7) → benzofuran-5-carbaldehyde (10035-16-2)

Conditions	Yield
Stage #1: 5-bromobenzofuran With tert.-butyl lithium In diethyl ether at -78℃; for 0.333333h; Stage #2: N,N-dimethyl-formamide In diethyl ether at -25 - 20℃; for 3h;	67%
Stage #1: 5-bromobenzofuran With tert.-butyl lithium In diethyl ether at -78℃; for 0.333333h; Stage #2: N,N-dimethyl-formamide In diethyl ether at -25 - 20℃;	67%

3-ethynyl-4-methoxybenzaldehyde (160625-49-0) → benzofuran-5-carbaldehyde (10035-16-2)

Conditions	Yield
With N,N,N,N,N,N-hexamethylphosphoric triamide; lithium chloride at 130℃; for 1.5h;	58%

3-(prop-1-enyl)-4-(prop-1-enyloxy)benzaldehyde (863659-50-1) → benzofuran-5-carbaldehyde (10035-16-2)

Conditions	Yield
With tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride In toluene at 90℃; for 3h;	50%

4-hydroxy-3-(2-propen-1-yl)benzaldehyde (41052-88-4) → benzofuran-5-carbaldehyde (10035-16-2)

Conditions	Yield
Multi-step reaction with 3 steps 1: 89 percent / K2CO3 / acetone / 2 h / 60 °C 2: 82 percent / [RuClH(CO)(PPh3)3] / CH2Cl2 / 14 h / 65 °C 3: 50 percent / ((Mes)2C3H5N2)Cl2Ru=CHPh / toluene / 3 h / 90 °C View Scheme

4-(2-propenyloxy)benzaldehyde (40663-68-1) → benzofuran-5-carbaldehyde (10035-16-2)

Conditions	Yield
Multi-step reaction with 4 steps 1: 41 percent / 0.17 h / 250 °C / microwave irradiation 2: 89 percent / K2CO3 / acetone / 2 h / 60 °C 3: 82 percent / [RuClH(CO)(PPh3)3] / CH2Cl2 / 14 h / 65 °C 4: 50 percent / ((Mes)2C3H5N2)Cl2Ru=CHPh / toluene / 3 h / 90 °C View Scheme

3-allyl-4-allyloxybenzaldehyde (136433-45-9) → benzofuran-5-carbaldehyde (10035-16-2)

Conditions	Yield
Multi-step reaction with 2 steps 1: 82 percent / [RuClH(CO)(PPh3)3] / CH2Cl2 / 14 h / 65 °C 2: 50 percent / ((Mes)2C3H5N2)Cl2Ru=CHPh / toluene / 3 h / 90 °C View Scheme

4-hydroxy-benzaldehyde (123-08-0) + n-nonyl halide → benzofuran-5-carbaldehyde (10035-16-2)

Conditions	Yield
Multi-step reaction with 5 steps 1: K2CO3 / acetone 2: 41 percent / 0.17 h / 250 °C / microwave irradiation 3: 89 percent / K2CO3 / acetone / 2 h / 60 °C 4: 82 percent / [RuClH(CO)(PPh3)3] / CH2Cl2 / 14 h / 65 °C 5: 50 percent / ((Mes)2C3H5N2)Cl2Ru=CHPh / toluene / 3 h / 90 °C View Scheme

4-bromo-phenol (106-41-2) + isobutyl halide → benzofuran-5-carbaldehyde (10035-16-2)

Conditions	Yield
Multi-step reaction with 3 steps 1: 1.) NaH / 1.) DMF, 0 deg C, 2.) DMF 2: polyphosphoric acid / benzene / Heating 3: 1.) t-BuLi / 1.) Et2O, -78 deg C, 2.) Et2O View Scheme

1-bromo-4-(2,2-diethoxyethoxy)benzene (112598-18-2) → benzofuran-5-carbaldehyde (10035-16-2)

Conditions	Yield
Multi-step reaction with 2 steps 1: polyphosphoric acid / benzene / Heating 2: 1.) t-BuLi / 1.) Et2O, -78 deg C, 2.) Et2O View Scheme

isovanillin (621-59-0) → benzofuran-5-carbaldehyde (10035-16-2)

Conditions	Yield
Multi-step reaction with 4 steps 1: 85 percent / ethyldiisopropylamine / CH2Cl2 / 0.67 h / -78 - 20 °C 2: 88 percent / Pd(PPh3)2Cl2, Et3N / dimethylformamide / 1.5 h / 90 °C 3: 68 percent / K2CO3 / methanol / 8.5 h / Ambient temperature 4: 58 percent / LiCl, HMPA / 1.5 h / 130 °C View Scheme

4-methoxy-3-[2-(trimethylsilyl)ethynyl]benzaldehyde (160625-48-9) → benzofuran-5-carbaldehyde (10035-16-2)

Conditions	Yield
Multi-step reaction with 2 steps 1: 68 percent / K2CO3 / methanol / 8.5 h / Ambient temperature 2: 58 percent / LiCl, HMPA / 1.5 h / 130 °C View Scheme

4-methoxy-3-trifluoromethanesulfonyloxybenzaldehyde (157790-73-3) → benzofuran-5-carbaldehyde (10035-16-2)

Conditions	Yield
Multi-step reaction with 3 steps 1: 88 percent / Pd(PPh3)2Cl2, Et3N / dimethylformamide / 1.5 h / 90 °C 2: 68 percent / K2CO3 / methanol / 8.5 h / Ambient temperature 3: 58 percent / LiCl, HMPA / 1.5 h / 130 °C View Scheme

5-bromobenzofuran (23145-07-5) → benzofuran-5-carbaldehyde (10035-16-2)

Conditions	Yield
With hydrogenchloride; iodine; magnesium In tetrahydrofuran; ethyl acetate; N,N-dimethyl-formamide

5-bromobenzofuran (23145-07-5) + 4-bromo-phenol (106-41-2) + Bromoacetaldehyde diethyl acetal (2032-35-1) → benzofuran-5-carbaldehyde (10035-16-2)

benzofuran-5-carbaldehyde (10035-16-2) → 5-hydroxymethylbenzo[b]furan (31823-05-9)

Conditions	Yield
Stage #1: benzofuran-5-carbaldehyde With sodium tetrahydroborate In methanol Cooling with ice; Stage #2: With ammonium chloride In methanol Saturated solution;	100%
With sodium tetrahydroborate In methanol at 0℃; for 0.166667h;	96%
With 2,2'-bi(1,3,6,2-dioxazaborocane); water at 20℃; for 18h; Inert atmosphere; Sealed tube;	86%

benzofuran-5-carbaldehyde (10035-16-2) → benzofuran-5-yl-(3-ethoxy-4-methoxy-phenyl)-methanol (878495-90-0)

Conditions	Yield
Stage #1: 1-Bromo-3-ethoxy-4-methoxybenzene With n-butyllithium In tetrahydrofuran at -78℃; for 0.333333h; Stage #2: benzofuran-5-carbaldehyde In tetrahydrofuran at -78℃; for 1h; Stage #3: With water In isopropyl alcohol	100%

benzofuran-5-carbaldehyde (10035-16-2) + ethyl 2-(bis(2-isopropylphenoxy)phosphoryl)acetate (188945-44-0) → (Z)-ethyl 3-(benzofuran-5-yl)acrylate (1499179-57-5)

Conditions	Yield
Stage #1: ethyl 2-[bis(2-isopropylphenoxy)phosphoryl]acetate With N-benzyl-trimethylammonium hydroxide In tetrahydrofuran; methanol at -78℃; Horner-Wadsworth-Emmons Olefination; Inert atmosphere; Stage #2: benzofuran-5-carbaldehyde In tetrahydrofuran; methanol at -78℃; Horner-Wadsworth-Emmons Olefination; Inert atmosphere; diastereoselective reaction;	96%

benzofuran-5-carbaldehyde (10035-16-2) + ethyl (triphenylphosphoranylidene)acetate (1099-45-2) → C13H12O3

Conditions	Yield
In dichloromethane at 40℃; for 20h;	96%

benzofuran-5-carbaldehyde (10035-16-2) → benzo[b]furan-5-carbonitrile (79002-39-4)

Conditions	Yield
With ammonium sulfate; sodium carbonate; sulfur In dimethyl sulfoxide at 120℃; for 10h; Sealed tube;	96%

benzofuran-5-carbaldehyde (10035-16-2) + 4-{4-(methylamino)thieno[3,2-d]pyrimidin-2-yl}benzohydrazide → N'-[(benzofuran-5-yl)methylene]-4-{4-(methylamino)thieno[3,2-d]pyrimidin-2-yl}benzohydrazide

Conditions	Yield
With toluene-4-sulfonic acid In ethanol at 120℃; for 1h; Inert atmosphere;	93%

benzofuran-5-carbaldehyde (10035-16-2) + methylamine (74-89-5) → benzofuran-5-yl-N-methylmethanamine (389845-58-3)

Conditions	Yield
Stage #1: benzofuran-5-carbaldehyde; methylamine In methanol; ethanol for 3h; Stage #2: With sodium tetrahydroborate In methanol at 20℃; Stage #3: With water In methanol	91%
Stage #1: benzofuran-5-carbaldehyde; methylamine In methanol; water at 0℃; for 0.916667h; Stage #2: With sodium tetrahydroborate In methanol; water for 0.75h;

benzofuran-5-carbaldehyde (10035-16-2) → benzofuran-5-carbaldehyde oxime (1018038-52-2)

Conditions	Yield
With hydroxylamine hydrochloride; triethylamine In dichloromethane at 20℃; for 3h;	91%
With hydroxylamine hydrochloride; triethylamine In dichloromethane at 20℃; for 12h;
With hydroxylamine hydrochloride; triethylamine In dichloromethane at 20℃; for 3h;	4.6 g
With hydroxylamine hydrochloride; triethylamine In dichloromethane at 20℃; for 16h;

BARBITURIC ACID (67-52-7) + benzofuran-5-carbaldehyde (10035-16-2) → 5-(1-benzofuran-5-ylmethylidene)pyrimidine-2,4,6(1H,3H,5H)-trione

Conditions	Yield
In 2-methyl-propan-1-ol for 0.75h; Reflux; Green chemistry;	91%
In 2-methyl-propan-1-ol for 0.75h; Reflux;	91%

benzofuran-5-carbaldehyde (10035-16-2) → 2,3-dibromo-2,3-dihydro-benzofuran-5-carbaldehyde

Conditions	Yield
With bromine In chloroform at 20℃; for 1h;	90%

benzofuran-5-carbaldehyde (10035-16-2) + (1,3-benzothiazol-2-ylsulfonyl)fluoromethyl n-propyl ketone (1149578-23-3) → (Z)-2-fluoro-1-(1-benzofuran-5-yl)-1-hexen-3-one (1184134-88-0)

Conditions	Yield
With 1,8-diazabicyclo[5.4.0]undec-7-ene In tetrahydrofuran; dichloromethane at 0 - 5℃; for 8h; Julia Olefin synthesis; stereoselective reaction;	90%

benzofuran-5-carbaldehyde (10035-16-2) + dimethyl 1-(1-diazo-2-oxopropyl)phosphonate (90965-06-3) → 5-ethynylbenzo[b]furane (1158745-04-0)

Conditions	Yield
With potassium carbonate In methanol at 20℃; for 12h;	90%

benzofuran-5-carbaldehyde (10035-16-2) + Methyltriphenylphosphonium bromide (1779-49-3) → 5-vinyl-1-benzofuran

Conditions	Yield
Stage #1: Methyltriphenylphosphonium bromide With potassium tert-butylate In tetrahydrofuran at 20℃; for 0.5h; Wittig Olefination; Inert atmosphere; Stage #2: benzofuran-5-carbaldehyde In tetrahydrofuran at 20℃; for 3h; Wittig Olefination; Inert atmosphere;	86%

benzofuran-5-carbaldehyde (10035-16-2) + 5-(difluoromethyl)-7-(3-piperidyl)-[1,2,4]triazolo[1,5-a]pyrimidine hydrochloride → 7-[1-(benzofuran-5-ylmethyl)-3-piperidyl]-5-(difluoromethyl)-[1,2,4]triazolo[1,5-a]pyrimidine hydrochloride

Conditions	Yield
Stage #1: benzofuran-5-carbaldehyde; 5-(difluoromethyl)-7-(3-piperidyl)-[1,2,4]triazolo[1,5-a]pyrimidine hydrochloride With N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 1h; Inert atmosphere; Stage #2: With sodium tris(acetoxy)borohydride In dichloromethane at 20℃; for 2h; Inert atmosphere; Stage #3: With hydrogenchloride In diphenylether Inert atmosphere;	86%

benzofuran-5-carbaldehyde (10035-16-2) + 4-(trifluoromethyl)phenylmagnesium bromide (402-51-7) → benzofuran-5-yl(4-(trifluoromethyl)phenyl)methanol

Conditions	Yield
In tetrahydrofuran at 0℃; for 1h; Inert atmosphere; Schlenk technique;	85%

tryptamine (61-54-1) + benzofuran-5-carbaldehyde (10035-16-2) → 1-benzofuran-5-yl-2,3,4,9-tetrahydro-1H-β-carboline (199678-72-3)

Conditions	Yield
With trifluoroacetic acid In dichloromethane for 48h;	83%

benzofuran-5-carbaldehyde (10035-16-2) + 2′-hydroxy-6′-methoxymethoxyacetophenone (78646-28-3) → (E)-3-Benzofuran-5-yl-1-(2-hydroxy-6-methoxymethoxy-phenyl)-propenone

Conditions	Yield
With potassium hydroxide In ethanol at 20℃;	82%

benzofuran-5-carbaldehyde (10035-16-2) + buta-1,3-diene (106-99-0) + phenylboronic acid (98-80-6) → (E)-1-(benzofuran-5-yl)-5-phenylpent-3-en-1-ol

Conditions	Yield
With bis(1,5-cyclooctadiene)nickel (0) In tetrahydrofuran; toluene at 20℃; for 6h; Sealed tube; Inert atmosphere; diastereoselective reaction;	82%

2-thioxo-4-thiazolidinone (141-84-4) + benzofuran-5-carbaldehyde (10035-16-2) → (Z)-5-[(benzofuran-5-yl)methylene]-2-thioxothiazolidin-4-one

Conditions	Yield
With ammonium acetate; acetic acid In acetonitrile for 2h; Inert atmosphere; Reflux;	81.2%

benzofuran-5-carbaldehyde (10035-16-2) + (2S,4R,5R)-5-amino-2-(bis(4-fluorophenyl)methyl)tetrahydro-2H-pyran-4-ol → (2S,4R,5R)-5-((benzofuran-5-ylmethyl)amino)-2-(bis(4-fluorophenyl) methyl)tetrahydro-2H-pyran-4-ol

Conditions	Yield
With sodium cyanoborohydride; acetic acid In methanol; 1,2-dichloro-ethane	81%
Stage #1: benzofuran-5-carbaldehyde; (2S,4R,5R)-5-amino-2-(bis(4-fluorophenyl)methyl)tetrahydro-2H-pyran-4-ol With acetic acid In 1,2-dichloro-ethane for 0.5h; Inert atmosphere; Stage #2: With sodium cyanoborohydride In MeOH; 1,2-dichloro-ethane Inert atmosphere;	81%

benzofuran-5-carbaldehyde (10035-16-2) + 1-(7-methoxy-2-(2,4,6-trimethoxyphenyl)benzofuran-5-yl)ethanone → (E)-3-(benzofuran-5-yl)-1-(7-methoxy-2-(2,4,6-trimethoxyphenyl)benzofuran-5-yl)prop-2-en-1-one

Conditions	Yield
With potassium hydroxide In methanol; water at 20℃; for 24h; Claisen-Schmidt Condensation;	79%

benzofuran-5-carbaldehyde (10035-16-2) + (5-methylpyrazine-2-yl)methylamine (132664-85-8) → C15H15N3O (1160051-86-4)

Conditions	Yield
Stage #1: benzofuran-5-carbaldehyde; (5-methylpyrazine-2-yl)methylamine With sodium acetate; acetic acid In methanol at 20℃; for 0.5h; Stage #2: With sodium tetrahydroborate In methanol for 0.5h; Stage #3: With water; sodium hydrogencarbonate In methanol	75%

benzofuran-5-carbaldehyde (10035-16-2) + (8-morpholin-4-yl-2-pyridin-4-yl-imidazo[1,2-b]pyridazin-6-yl)-hydrazine (1313014-23-1) → N-benzofuran-5-ylmethylene-N'-(8-morpholin-4-yl-2-pyridin-4-yl-imidazo[1,2-b]pyridazin-6-yl)-hydrazine (1313014-05-9)

Conditions	Yield
In ethanol at 20℃;	71%

benzofuran-5-carbaldehyde (10035-16-2) → (2RS,3SR)-2,3-dibromo-2,3-dihydrobenzofuran-5-carbaldehyde

Conditions	Yield
With bromine; acetic acid at 100℃; for 0.5h;	70%
With bromine In chloroform at 20℃; Cooling;	50%

(2S,4R,5R)-5-amino-2-benzhydryltetrahydro-2H-pyran-4-ol (869114-22-7) + benzofuran-5-carbaldehyde (10035-16-2) → (2S,4R,5R)-2-benzhydryl-5-((benzofuran-5-ylmethyl)amino)tetrahydro-2H-pyran-4-ol

Conditions	Yield
Stage #1: (2S,4R,5R)-5-amino-2-benzhydryl-tetrahydropyran-4-ol; benzofuran-5-carbaldehyde With acetic acid In 1,2-dichloro-ethane for 0.5h; Inert atmosphere; Stage #2: With sodium cyanoborohydride In MeOH; 1,2-dichloro-ethane Inert atmosphere;	69%

cis-(3S,6S)-(6-benzhydryl-tetrahydropyran-3-yl)-amine (869114-39-6) + benzofuran-5-carbaldehyde (10035-16-2) → (3S,6S)-6-benzhydryl-N-(benzofuran-5-ylmethyl)tetrahydro-2H-pyran-3-amine

Conditions	Yield
Stage #1: cis-(3S,6S)-(6-benzhydryl-tetrahydropyran-3-yl)-amine; benzofuran-5-carbaldehyde With acetic acid In 1,2-dichloro-ethane for 0.5h; Stage #2: With sodium cyanoborohydride In methanol; 1,2-dichloro-ethane	67%
Stage #1: cis-(3S,6S)-(6-benzhydryl-tetrahydropyran-3-yl)-amine; benzofuran-5-carbaldehyde With acetic acid In acetic acid; 1,2-dichloro-ethane for 0.5h; Inert atmosphere; Stage #2: With sodium cyanoborohydride In MeOH; 1,2-dichloro-ethane Inert atmosphere;	67%

Upstream product

• 40663-68-1 4-(2-propenyloxy)benzaldehyde 
• 123-08-0 4-hydroxy-benzaldehyde 
• 23145-07-5 5-bromobenzofuran 
• 55745-70-5 2,3-dihydro-benzofuran-5-carbaldehyde 
• 106-41-2 4-bromo-phenol 
• 2032-35-1 Bromoacetaldehyde diethyl acetal 
• 68-12-2 N,N-dimethyl-formamide 
• 157790-73-3 4-methoxy-3-trifluoromethanesulfonyloxybenzaldehyde 
• 160625-48-9 4-methoxy-3-[2-(trimethylsilyl)ethynyl]benzaldehyde 
• 621-59-0 isovanillin 
• 112598-18-2 1-bromo-4-(2,2-diethoxyethoxy)benzene 
• 136433-45-9 3-allyl-4-allyloxybenzaldehyde 
• 41052-88-4 4-hydroxy-3-(2-propen-1-yl)benzaldehyde 
• 79002-39-4 benzo[b]furan-5-carbonitrile 

Downstream Products

• 31823-05-9 5-hydroxymethylbenzo[b]furan 
• 578028-25-8 3-bromo-1-benzofuran-5-carbaldehyde 
• 1177252-19-5 1-[1-benzofuran-5-yl(1-benzyl-1H-tetrazol-5-yl)methyl]-4-cyclobutyl-1,4-diazepane 
• 79002-39-4 benzo[b]furan-5-carbonitrile 
• 131965-82-7 2-(benzo[b]furan-5-yl)oxirane 
• 1049661-85-9 (E)-3-Benzofuran-5-yl-1-[2-hydroxy-4-methyl-6-((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-phenyl]-propenone 

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