An optimized synthesis of a key pharmaceutical

Abstract: An efficient synthesis of methyl 4- [(1-oxopropyl)phenylamino]piperidine-4-car-boxylate (7) has been developed starting from 1-benzylpiperidin-4-one (1) The compound is a key intermediate in the synthesis of new generation highly active narcotic analgesics such as remifintanil as well as the novel classes of fentanyl analogues

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Fentanyl

A series of conformationally restricted semirigid analogs of fentanyl as N-substituted propionylananilidonortropanes (3S) [77 78] For this reason the acid 57 salt was reacted with ethyl chloroformate to be transferred to 1-(ethoxycarbonyl)-4-(phenylamino)piperidine-4-carboxylic acid (58) which on interaction with phosgene gave oxazolidine-2 5-dione derivative

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China Safe to Mexico CAS 125541

125541-22-2 125541 125541-22-2 Powder manufacturer / supplier in China offering Safe to Mexico CAS 125541-22-2 1-Boc-4- (Phenylamino) Piperidine Factory Supply High Quality Benzocaine CAS: 94-09-7 with The Best Price Factory Supply 4 4-Piperidinediol Hydrochloride (CAS 40064-34-4)

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Product Details Product Name: 1

Product Details Product Name: 1-N-Boc-4-(Phenylamino)piperidine cas number: 1255 for Sale for sale - Product Details Product Name 1-N-Boc-4-(Phenylamino)piperidine cas number 125541-22-2 MF C16H24N2O2 MW 27637 EINECS 203-105-0 Contact Us E-mailsales9aoksbiocom SkypeAlsa Lee(livesales9_793) WhatsAppSignal +8615377672652 Main Products Benzeneacetic acid a-acetyl- methyl ester cas 16648-44-5 N

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N

N-Phenethyl-4-piperidinone (NPP) is a derivative of 4-piperidinone with the molecular formula C 13 H 17 NO 4-Piperidinone is used as an intermediate in the manufacture of chemicals and pharmaceutical drugs such as fentanyl Because of its possible use in the illicit manufacture of fentanyl NPP was placed onto the list of controlled chemicals in the USA in 2007 and possession and sales of

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1

1-N-Boc-4-(Phenylamino)piperidine CAS NO: 125541-22-2 Molecular Formular C16H24N2O2 EINECS NO 203-105-0 MW 276 37 Purity 99% Appearance white powder Place of origin China f a q 1 how is the quality the qualities of most products are above 99% purity same are 99 7% purity 2 how is the package aluminum foil bag or as customer's required 3 how is the

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1

1-N-Boc-4-(Phenylamino)piperidine Mol Download Chemical properties CAS:125541-22-2 MF:C16H24N2O2 MW:276 37 EINECS:203-105-0 Properties Melting point:136-137 Safety Information Hazard Codes Xi Xn Risk Statements 22 Hazard Note Harmful/Irritant HazardClass IRRITANT Scan the QR code to read on your phone We could not find any corresponding

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High quality cas 125541

1-N-Boc-4-(Phenylamino)piperidine CAS No : 125541-22-2 Purity: 98% 400 RMB/Metric Ton Hebei Qige Biotechnology Co ltd 1-N-Boc-4-(Phenylamino)piperidine CAS No : 125541-22-2 Purity: 98% Hubei Jiutian Bio-medical Technology Co Ltd Tert-butyl 4-anilinotetrahydro-1(2H)-pyr CAS No : 125541-22-2 Purity: Hangzhou JH Chemical Co Ltd Precursor and Product

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4 Piperidine Products

4 Piperidine products ☆ Find 4 Piperidine products manufacturers suppliers and exporters Menu Product All Product Selling Leads Buying 1-N-Boc-4-(Phenylamino)piperidine / tert-Butyl 4-anilinopiperidine-1-carboxylate CAS 125541-22-2 whatsapp:+8613383528581 Email: sarah(at)roilanddt Product Details Product Name tert-Butyl 4-anilinopiperidine-1-carboxylate Other Name 1-N-Boc-4

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1

1-Boc-4-(Phenylamino)piperidine cas125541-22-2 CAS NO 125541-22-2 FOB Price: USD 100 /Kilogram Get Latest Price Min Order: 10 Gram Payment Terms: L/C D/P T/T Western Union Other Available Specifications: 99 9%(1-100)Kilogram 99 9%(100-1000)Kilogram 99 5%(1000-5000)Kilogram

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N

N-Phenethyl-4-piperidinone (NPP) is a derivative of 4-piperidinone with the molecular formula C 13 H 17 NO 4-Piperidinone is used as an intermediate in the manufacture of chemicals and pharmaceutical drugs such as fentanyl Because of its possible use in the illicit manufacture of fentanyl NPP was placed onto the list of controlled chemicals in the USA in 2007 and

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4

4-(N-Boc-amino)piperidone may be used as a functionalization reagent for introduction of a primary and a tertiary amino group to poly(2-isopropyl-2-oxazol ine Pharma building block Used in a synthesis of a piperidine-4-carboxamide CCR5 antagonist with potent anti-HIV-1 activity Packaging 1 5 25 g in glass bottle

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N

12/18/1979In the prior art there may be found some N-(4-piperidinyl)-N-phenylamides and -carbamates having analgesic activity Among other points of difference the compounds of this invention differ from the prior art compounds by the nature of the R 1 -substituted present in the 4-position of the piperidine

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Analytical Research Standards (ARS)

1579 Threo-a-phenyl-2-piperidine acetic acid 1631 Erythro Ritalinic Acid Hydrochloride HYDROCODONE 1587 Hydrocodone + RC 1224 Hydrocodone Base 1226 Hydrocodone Bitartrate 1584 Hydrocodone Di-OL 7267 Hydrocodone N-Oxide Hydrochloride 1545 Codeine Methyl Ether N/A 10-Ketohydrocodone N/A 10-Alpha-hydroxyhydrocodone N/A 10-Beta-hydroxyhydrocodone

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Analytical Research Standards (ARS)

Analytical Research Standards (ARS) RC=Related Compounds MEPERIDINE 1421 Meperidine Base 1419 Meperidine Hydrochloride 1422 Meperidinic Acid Hydrochloride 3011 N-Ethylnormeperidine Hydrochloride 1623 Normeperidine Hydrochloride METHADONE 1514 Methadone Base 1425 Methadone Hydrochloride METHYLNALTREXONE BROMIDE 1619

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CAS No 61085

Methyl 1-benzyl-4-((propionyl)phenylamino)piperidine-4-carboxylate 61085-72-1 supplier Min Order: 1 Kilogram FOB Price: USD $ 100 0-150 0/Kilogram Our company: Wuhan Monad Medicine Tech Co LTD is a research and development production sales in one high-tech company own about 100 kinds of products can provide about more than 30000 kinds of products

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4

4-(N-Boc-amino)piperidone may be used as a functionalization reagent for introduction of a primary and a tertiary amino group to poly(2-isopropyl-2-oxazol ine Pharma building block Used in a synthesis of a piperidine-4-carboxamide CCR5 antagonist with potent anti-HIV-1 activity Packaging 1 5 25 g in glass bottle

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Crystal structures of two chiral piperidine derivatives: 1

01 10 2015The crystal structures of the two title piperidine derivatives show different conformations for the six-membered heterocycle The N-substituted 4-piperidinone 1-[(1R)-2-hydroxy-1-phenylethyl]piperidin-4-one C 13 H 17 NO 2 (I) has a chair conformation while the piperidine substituted in position 2 with a thiocarbonyl group 8-[(1S)-1-phenylethyl]-1 4-dioxa-8-azaspiro[4 5

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N

4-(N-Phenylamino)piperidine dihydrochloride Security Information Product Categories : Fine Chemical Email to this supplier *Subject: *To: Mr Anson *Message: Your message must be between 20-8000 characters Contact Supplier Mr Anson Leave a message Get Quotes Related Products

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Methyl 1

Methyl 1-benzyl-4-((propionyl)phenylamino)piperidine-4-carboxylate: EINECS: 262-590-8 CAS No 61085-72-1: Density: 1 169 g/cm 3: Solubility: Melting Point: Formula: C 23 H 28 N 2 O 3: Boiling Point: 490 5 C at 760 mmHg Molecular Weight: 380 48002 Flash Point: 250 5 C Transport Information

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