4 n phenylamino piperidine 2 5

US5106983A

US5106983A US07/517 012 US51701290A US5106983A US 5106983 A US5106983 A US 5106983A US 51701290 A US51701290 A US 51701290A US 5106983 A US5106983 A US 5106983A Authority US United States Prior art keywords phenethyl β phenylamino piperidine carfentanil Prior art date 1990-04-30 Legal status (The legal status is an assumption and is not a legal conclusion

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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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1

1-Benzyl-4-phenylamino-4-carboxy-piperidine DMF CEP Written Confirmations FDF Prices Patents Patents Exclusivities Dossier Manufacturer Licensing Distributer Suppliers News 85098-64-2 1-Benzyl-4-(phenylamino)piperidine-4-carboxylic acid 4-Anilino-1-benzyl-4-piperidinecarboxylic acid NSC73748 UNII-B4386XQ54S

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4 n phenylamino piperidine price

N phenylamino piperidine dihydrochloride Sales Service 1 Full experience of large numbers containers loading in Chinese sea port 2 Fast shipment by professional shipping line 3 Packing with pallet as buyer s request 4 Cargoes together with container sales service available 5

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US5106983A

US5106983A US07/517 012 US51701290A US5106983A US 5106983 A US5106983 A US 5106983A US 51701290 A US51701290 A US 51701290A US 5106983 A US5106983 A US 5106983A Authority US United States Prior art keywords phenethyl β phenylamino piperidine carfentanil Prior art date 1990-04-30 Legal status (The legal status is an assumption and is not a legal conclusion

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China High Quality CAS 125541

Tert-Butyl 4-Anilinopiperidine-1-Carboxylate 1-N-Boc-4- (Phenylamino) Piperidine CAS 125541-22-2 manufacturer / supplier in China offering High Quality CAS 125541-22-2 1-N-Boc-4- (Phenylamino) Piperidine Hot Sale 99% Purity Tadalafil Powder for Man CAS 171596-29-5 Factory Price 99% Amino Tadalafil CAS 385769-84-6 for Treatment Male Erectile Dysfunction and so on

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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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Best Offer 1

1-N-Boc-4- (Phenylamino) 125541-22-2 CAS Pharmaceutical Intermediates manufacturer / supplier in China offering Best Offer 1-N-Boc-4- (Phenylamino) Powder CAS 125541-22-2 Gabapentin Powder CAS 60142-96-3 with Best Price Wickr Kerry1 4 4-Piperidinediol Hydrochloride CAS 40064-34-4 Wickr Kerry1 Best Offer and so on

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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 4 4-Piperidinediol Hydrochloride CAS No 40064-34-4 Aicrowe Best Offer 4 4-Piperidinediol Hydrochloride CAS No 40064-34-4 Wickr Kerry1 and so on

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1 boc 4 phenylamino piperidine list

N 109384-19-2 1-Boc-4-hydroxypiperidine 1 Featured suppliers/resources for N-Boc-4-hydroxy-piperidine List your site here Sancai Industry Co Ltd: Manufacturer: China: Sancai Industry is professional manufacture and supplier of chemicals in china we insist on supplying high quality fine chemicals pharmaceuticals intermediates and other

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4 n phenylamino piperidine price

N phenylamino piperidine dihydrochloride Sales Service 1 Full experience of large numbers containers loading in Chinese sea port 2 Fast shipment by professional shipping line 3 Packing with pallet as buyer s request 4 Cargoes together with container sales service available 5

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Best Offer 1

1-N-Boc-4- (Phenylamino) 125541-22-2 CAS Pharmaceutical Intermediates manufacturer / supplier in China offering Best Offer 1-N-Boc-4- (Phenylamino) Powder CAS 125541-22-2 Gabapentin Powder CAS 60142-96-3 with Best Price Wickr Kerry1 4 4-Piperidinediol Hydrochloride CAS 40064-34-4 Wickr Kerry1 Best Offer and so on

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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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4

4-(4-Methoxy-phenylamino)-piperidine-4-carboxylic acid methyl ester Wholesale Various High Quality 4-(4-Methoxy-phenylamino)-piperidine-4-carboxylic acid methyl ester Products from Global Sodium Tripolyphosphate Suppliers and 4-(4-Methoxy-phenylamino)-piperidine-4-carboxylic acid methyl ester Factory Importer Exporter at Okchem

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WO2005013988A8

Said object was achieved by providing 1 4-disubstituted piperidine compounds of general formula (1) wherein the substituents are defined in claim 1 It was an object of the present invention to provide novel compounds that are suitable in particular as active substances in medicaments preferably in medicaments for the regulation of

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WO2005013988A8

Said object was achieved by providing 1 4-disubstituted piperidine compounds of general formula (1) wherein the substituents are defined in claim 1 It was an object of the present invention to provide novel compounds that are suitable in particular as active substances in medicaments preferably in medicaments for the regulation of

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Norcarfentanil

1-methylpiperazine-2 5-dione is also served by Leap Chem Co Ltd As a highly customer-oriented enterprise we are committed to providing high-quality customer services and products to our global customers in a cost-effective and efficient manner Our client list includes many m

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CAS No 125541

FINETECH INDUSTRY LIMITED supplies the 1-N-Boc-4-(Phenylamino)piperidine CAS:125541-22-2 with the most competitive price an Finetech Industry Limited is a company in England which specializing in developing manufacturing and marketing fine organic compounds and intermediates for

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1

1-Benzyl-4-phenylamino-4-carboxy-piperidine DMF CEP Written Confirmations FDF Prices Patents Patents Exclusivities Dossier Manufacturer Licensing Distributer Suppliers News 85098-64-2 1-Benzyl-4-(phenylamino)piperidine-4-carboxylic acid 4-Anilino-1-benzyl-4-piperidinecarboxylic acid NSC73748 UNII-B4386XQ54S

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4

4-(2-Amino-4-tert-butyl-phenylamino)-piperidine-1-carboxylic acid ethyl ester Wholesale Various High Quality 4-(2-Amino-4-tert-butyl-phenylamino)-piperidine-1-carboxylic acid ethyl ester Products from Global Sodium Tripolyphosphate Suppliers and 4-(2-Amino-4-tert-butyl-phenylamino)-piperidine-1-carboxylic acid ethyl ester Factory Importer Exporter at Okchem

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Synthesis of Carfentanil

A solution of 28 4 g (0 088 mole) of 1-(beta-phenethyl)-4-(N-phenylamino)-4-piperidine carboxamide and 17 g of potassium hydroxide in 114 mL of ethylene glycol was allowed to reflux for 3 hours The reaction mixture was poured into 228 mL of ice-water and made acidic to pH 6-6 5 with concentrated hydrochloric acid during which a tan solid

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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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CAS No 85098

1-Benzyl-4-(phenylamino)piperidine-4-carboxylic acid the latest price quotation CAS NO 85098-64-2 search 1-Benzyl-4-(phenylamino)piperidine-4-carboxylic acid manufacturer wholesale price comparison 1-Benzyl-4-(phenylamino)piperidine-4-carboxylic acid supplier quotation

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Crystal structures of two chiral piperidine derivatives: 1

10/1/2015The 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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