[ CAS No. 1779-49-3 ] {[proInfo.proName]}

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Quality Control of [ 1779-49-3 ]

COA NMR CNMR HPLC LC-MS

Related Doc. of [ 1779-49-3 ]

SDS Specification

Alternatived Products of [ 1779-49-3 ]

Product Citations

2,5-Disubstituted Bicyclo[2.1.1]hexanes as Rigidified Cyclopentane Variants for Medicinal Chemistry

Shashwati Paul ; Daniel Adelfinsky ; Christophe Salome , et al. Chem. Sci.,2023,14(30):8070-8075. DOI: 10.1039/D3SC02695G

Abstract: Identification of rigid counterparts for common flexible scaffolds is crucial to the advancement of medicinal chemistry. Here we showcase a new class of building blocks, 2,5-disubstituted bicyclo[2.1.1]hexanes that can act as rigidified cis-, or trans-1,3-disubstituted cyclopentanes, common motifs in drugs. The scalable synthesis of these structures was enabled through the use of C–H functionalization logic and cycloaddition reactions.

Purchased from AmBeed: 1779-49-3 ; 497-38-1

Product Details of [ 1779-49-3 ]

CAS No. :	1779-49-3	MDL No. :	MFCD00011804
Formula :	C₁₉H₁₈BrP	Boiling Point :	-
Linear Structure Formula :	CH₃(C₆H₅)₃PBr	InChI Key :	LSEFCHWGJNHZNT-UHFFFAOYSA-M
M.W :	357.22	Pubchem ID :	74505
Synonyms :

Calculated chemistry of [ 1779-49-3 ] Expand+

Physicochemical Properties

Num. heavy atoms :	21
Num. arom. heavy atoms :	18
Fraction Csp3 :	0.05
Num. rotatable bonds :	3
Num. H-bond acceptors :	0.0
Num. H-bond donors :	0.0
Molar Refractivity :	99.94
TPSA :	13.59 ?2

Pharmacokinetics

GI absorption :	Low
BBB permeant :	No
P-gp substrate :	Yes
CYP1A2 inhibitor :	No
CYP2C19 inhibitor :	No
CYP2C9 inhibitor :	No
CYP2D6 inhibitor :	Yes
CYP3A4 inhibitor :	No
Log Kp (skin permeation) :	-5.38 cm/s

Lipophilicity

Log Po/w (iLOGP) :	-1.74
Log Po/w (XLOGP3) :	4.37
Log Po/w (WLOGP) :	0.61
Log Po/w (MLOGP) :	5.74
Log Po/w (SILICOS-IT) :	4.74
Consensus Log Po/w :	2.74

Druglikeness

Lipinski :	1.0
Ghose :	None
Veber :	0.0
Egan :	0.0
Muegge :	1.0
Bioavailability Score :	0.55

Water Solubility

Log S (ESOL) :	-5.24
Solubility :	0.00204 mg/ml ; 0.0000057 mol/l
Class :	Moderately soluble
Log S (Ali) :	-4.37
Solubility :	0.0152 mg/ml ; 0.0000425 mol/l
Class :	Moderately soluble
Log S (SILICOS-IT) :	-7.93
Solubility :	0.0000042 mg/ml ; 0.0000000117 mol/l
Class :	Poorly soluble

Medicinal Chemistry

PAINS :	0.0 alert
Brenk :	1.0 alert
Leadlikeness :	2.0
Synthetic accessibility :	4.5

Safety of [ 1779-49-3 ]

Signal Word:	Danger	Class:	6.1
Precautionary Statements:	P261-P264-P270-P271-P301+P310-P304+P340-P312-P330-P403+P233-P405-P501	UN#:	2811
Hazard Statements:	H301-H411	Packing Group:	Ⅲ
GHS Pictogram:

Application In Synthesis of [ 1779-49-3 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

Upstream synthesis route of [ 1779-49-3 ]
Downstream synthetic route of [ 1779-49-3 ]

[ 1779-49-3 ] Synthesis Path-Upstream 1~3

1
[ 1779-49-3 ]
[ 153559-45-6 ]
[ 153559-48-9 ]

Yield	Reaction Conditions	Operation in experiment
66%	With sodium amide In tetrahydrofuran	Rectangular plates of compound 35 were found suitable for X-ray diffraction, and a study was conducted. To complete the synthesis of bexarotene, the Friedel-Crafts acylation of 35, by crude mono-methyl-terephthaloyl chloride (36), gave ketone (37) which was converted to alkene ester(38) by a Wittig reaction, and ester 38 was saponified by potassium hydroxide followed by acidification with aqueous hydrochloric acid to give bexarotene (39) (Scheme 2).

Reference： [1] Journal of Medicinal Chemistry, 2009, vol. 52, # 19, p. 5950 - 5966
[2] Patent: WO2011/103321, 2011, A1, . Location in patent: Page/Page column 19
[3] Journal of Medicinal Chemistry, 1994, vol. 37, # 18, p. 2930 - 2941
[4] Journal of Labelled Compounds and Radiopharmaceuticals, 1995, vol. 36, # 7, p. 701 - 712
[5] Journal of Medicinal Chemistry, 1995, vol. 38, # 17, p. 3368 - 3383

2
[ 1779-49-3 ]
[ 153559-45-6 ]
[ 1349659-53-5 ]
[ 1349659-55-7 ]
[ 1349659-56-8 ]
[ 1349659-57-9 ]
[ 153559-48-9 ]

Reference： [1] Patent: WO2011/141928, 2011, A1, . Location in patent: Page/Page column 19

3
[ 1779-49-3 ]
[ 98977-36-7 ]
[ 276872-89-0 ]

Reference： [1] European Journal of Medicinal Chemistry, 2011, vol. 46, # 12, p. 5790 - 5799

Yield	Reaction Conditions	Operation in experiment
		General procedure: To the mixture of methyltriphenylphosphonium bromide (21.6 g, 60.0 mmol) and t-BuOK (9.0 g, 80.0 mmol) was added anhydrous THF (80.0 mL) and stirred at r.t. for 1 hour under argon, then a solution of 1-(2-bromophenyl)ethan-1-one (8.0 g, 40.0 mmol) in THF (40.0 mL) was added dropwise. The resulting reaction mixture was stirred overnight at room temperature and quenched with saturated NH4Cl solution. The organic layer was separated and the aqueous layer was extracted with EtOAc (3 × 30 mL). The combined organic layers were dried over Na2SO4, filtered, and concentrated in vacuo. The residue was purified by flash chromatography on silica gel using petroleum/EtOAc as eluent to yield 1-bromo-2-(prop-1-en-2-yl)benzene (6.9 g, 88%)

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Isomers

Technical Information

? Benzylic Oxidation ? Birch Reduction ? Blanc Chloromethylation ? Friedel-Crafts Reaction ? Hydrogenolysis of Benzyl Ether ? Nucleophilicity of Organophosphorus Compounds ? Organophosphorus Compounds as Reducing Agents ? Oxidation States of Organophosphorus Compounds ? Preparation of Alkylbenzene ? Reactions of Benzene and Substituted Benzenes ? Reactions of Phosphorus and Sulfur Ylides ? Vilsmeier-Haack Reaction

Historical Records

Pharmaceutical Intermediates of
[ 1779-49-3 ]

Rolapitant Related Intermediates

[ 1214741-20-4 ]

(3R,7AR)-3-(tert-butyl)-7a-vinyldihydropyrrolo[1,2-c]oxazole-1,5(3H,6H)-dione

[ 1214741-21-5 ]

(3R,7aR)-3-(tert-butyl)-1-hydroxy-7a-vinyltetrahydropyrrolo[1,2-c]oxazol-5(3H)-one

[ 1214741-19-1 ]

(3R,7aR)-3-(tert-Butyl)-1,5-dioxohexahydropyrrolo[1,2-c]oxazole-7a-carbaldehyde

[ 1214741-14-6 ]

(S)-1-((R)-1-(3,5-Bis(trifluoromethyl)phenyl)ethoxy)-2-phenylbut-3-en-2-amine fumarate

[ 196929-78-9 ]

(R)-2-Methyl-2-propanesulfinamide

Edoxaban Related Intermediates

[ 143150-92-9 ]

2-Bromo-5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine

[ 273-70-1 ]

Thiazolo[5,4-c]pyridine

[ 259809-24-0 ]

5-Methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine

[ 365996-04-9 ]

tert-Butyl (3-mercaptopyridin-4-yl)carbamate

[ 98400-69-2 ]

4-(Boc-Amino)pyridine

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P101	If medical advice is needed,have product container or label at hand.
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Prevention
Code	Phrase
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Response
Code	Phrase
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P304	IF INHALED:
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P306	IF ON CLOTHING:
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P311	Call a POISON CENTER or doctor/physician.
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P313	Get medical advice/attention.
P314	Get medical advice/attention if you feel unwell.
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P320
P302 + P352	IF ON SKIN: wash with plenty of soap and water.
P321
P322
P330	Rinse mouth.
P331	Do NOT induce vomiting.
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P335	Brush off loose particles from skin.
P336	Thaw frosted parts with lukewarm water. Do not rub affected area.
P337	If eye irritation persists:
P338	Remove contact lenses, if present and easy to do. Continue rinsing.
P340	Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P341	If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing.
P342	If experiencing respiratory symptoms:
P350	Gently wash with plenty of soap and water.
P351	Rinse cautiously with water for several minutes.
P352	Wash with plenty of soap and water.
P353	Rinse skin with water/shower.
P360	Rinse immediately contaminated clothing and skin with plenty of water before removing clothes.
P361	Remove/Take off immediately all contaminated clothing.
P362	Take off contaminated clothing and wash before reuse.
P363	Wash contaminated clothing before reuse.
P370	In case of fire:
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P373	DO NOT fight fire when fire reaches explosives.
P374	Fight fire with normal precautions from a reasonable distance.
P376	Stop leak if safe to do so. Oxidising gases (section 2.4) 1
P377	Leaking gas fire: Do not extinguish, unless leak can be stopped safely.
P378
P380	Evacuate area.
P381	Eliminate all ignition sources if safe to do so.
P390	Absorb spillage to prevent material damage.
P391	Collect spillage. Hazardous to the aquatic environment
P301 + P310	IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P301 + P312	IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P301 + P330 + P331	IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P302 + P334	IF ON SKIN: Immerse in cool water/wrap in wet bandages.
P302 + P350	IF ON SKIN: Gently wash with plenty of soap and water.
P303 + P361 + P353	IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P304 + P312	IF INHALED: Call a POISON CENTER or doctor/physician if you feel unwell.
P304 + P340	IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P304 + P341	IF INHALED: If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305 + P351 + P338	IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P306 + P360	IF ON CLOTHING: Rinse Immediately contaminated CLOTHING and SKIN with plenty of water before removing clothes.
P307 + P311	IF exposed: call a POISON CENTER or doctor/physician.
P308 + P313	IF exposed or concerned: Get medical advice/attention.
P309 + P311	IF exposed or if you feel unwell: call a POISON CENTER or doctor/physician.
P332 + P313	IF SKIN irritation occurs: Get medical advice/attention.
P333 + P313	IF SKIN irritation or rash occurs: Get medical advice/attention.
P335 + P334	Brush off loose particles from skin. Immerse in cool water/wrap in wet bandages.
P337 + P313	IF eye irritation persists: Get medical advice/attention.
P342 + P311	IF experiencing respiratory symptoms: call a POISON CENTER or doctor/physician.
P370 + P376	In case of fire: Stop leak if safe to Do so.
P370 + P378	In case of fire:
P370 + P380	In case of fire: Evacuate area.
P370 + P380 + P375	In case of fire: Evacuate area. Fight fire remotely due to the risk of explosion.
P371 + P380 + P375	In case of major fire and large quantities: Evacuate area. Fight fire remotely due to the risk of explosion.
Storage
Code	Phrase
P401
P402	Store in a dry place.
P403	Store in a well-ventilated place.
P404	Store in a closed container.
P405	Store locked up.
P406	Store in corrosive resistant/ container with a resistant inner liner.
P407	Maintain air gap between stacks/pallets.
P410	Protect from sunlight.
P411
P412	Do not expose to temperatures exceeding 50 oC/ 122 oF.
P413
P420	Store away from other materials.
P422
P402 + P404	Store in a dry place. Store in a closed container.
P403 + P233	Store in a well-ventilated place. Keep container tightly closed.
P403 + P235	Store in a well-ventilated place. Keep cool.
P410 + P403	Protect from sunlight. Store in a well-ventilated place.
P410 + P412	Protect from sunlight. Do not expose to temperatures exceeding 50 oC/122oF.
P411 + P235	Keep cool.
Disposal
Code	Phrase
P501	Dispose of contents/container to ...
P502	Refer to manufacturer/supplier for information on recovery/recycling

Physical hazards
Code	Phrase
H200	Unstable explosive
H201	Explosive; mass explosion hazard
H202	Explosive; severe projection hazard
H203	Explosive; fire, blast or projection hazard
H204	Fire or projection hazard
H205	May mass explode in fire
H220	Extremely flammable gas
H221	Flammable gas
H222	Extremely flammable aerosol
H223	Flammable aerosol
H224	Extremely flammable liquid and vapour
H225	Highly flammable liquid and vapour
H226	Flammable liquid and vapour
H227	Combustible liquid
H228	Flammable solid
H229	Pressurized container: may burst if heated
H230	May react explosively even in the absence of air
H231	May react explosively even in the absence of air at elevated pressure and/or temperature
H240	Heating may cause an explosion
H241	Heating may cause a fire or explosion
H242	Heating may cause a fire
H250	Catches fire spontaneously if exposed to air
H251	Self-heating; may catch fire
H252	Self-heating in large quantities; may catch fire
H260	In contact with water releases flammable gases which may ignite spontaneously
H261	In contact with water releases flammable gas
H270	May cause or intensify fire; oxidizer
H271	May cause fire or explosion; strong oxidizer
H272	May intensify fire; oxidizer
H280	Contains gas under pressure; may explode if heated
H281	Contains refrigerated gas; may cause cryogenic burns or injury
H290	May be corrosive to metals
Health hazards
Code	Phrase
H300	Fatal if swallowed
H301	Toxic if swallowed
H302	Harmful if swallowed
H303	May be harmful if swallowed
H304	May be fatal if swallowed and enters airways
H305	May be harmful if swallowed and enters airways
H310	Fatal in contact with skin
H311	Toxic in contact with skin
H312	Harmful in contact with skin
H313	May be harmful in contact with skin
H314	Causes severe skin burns and eye damage
H315	Causes skin irritation
H316	Causes mild skin irritation
H317	May cause an allergic skin reaction
H318	Causes serious eye damage
H319	Causes serious eye irritation
H320	Causes eye irritation
H330	Fatal if inhaled
H331	Toxic if inhaled
H332	Harmful if inhaled
H333	May be harmful if inhaled
H334	May cause allergy or asthma symptoms or breathing difficulties if inhaled
H335	May cause respiratory irritation
H336	May cause drowsiness or dizziness
H340	May cause genetic defects
H341	Suspected of causing genetic defects
H350	May cause cancer
H351	Suspected of causing cancer
H360	May damage fertility or the unborn child
H361	Suspected of damaging fertility or the unborn child
H361d	Suspected of damaging the unborn child
H362	May cause harm to breast-fed children
H370	Causes damage to organs
H371	May cause damage to organs
H372	Causes damage to organs through prolonged or repeated exposure
H373	May cause damage to organs through prolonged or repeated exposure
Environmental hazards
Code	Phrase
H400	Very toxic to aquatic life
H401	Toxic to aquatic life
H402	Harmful to aquatic life
H410	Very toxic to aquatic life with long-lasting effects
H411	Toxic to aquatic life with long-lasting effects
H412	Harmful to aquatic life with long-lasting effects
H413	May cause long-lasting harmful effects to aquatic life
H420	Harms public health and the environment by destroying ozone in the upper atmosphere

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[ CAS No. 1779-49-3 ] {[proInfo.proName]}

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