2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4-(benzyloxy)-3-(benzyloxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one

Product Name: 2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4-(benzyloxy)-3-(benzyloxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one
CAS No.: 142217-81-0
Chemical Name: 2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4-(benzyloxy)-3-(benzyloxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one
Synonyms: DIBENZYLOXY GUANINE INTERMEDIATE;2-aMino-1,9-dihydro-9-[(1S,3R,4S)-2-Methylene-4-(benzyloxy)-3-[(benzyloxy)Methyl]cyclopentyl]-6H-Purin-6-one;ETA/ET1/N8;Entecavir-9;Entecavir E8;N-1 Entecavir API;Dibenzyl Entecavir;US-DMF No.: 026257;Entecavir Impurity 4;Entecavir dibenzylated
CBNumber: CB11562443
Molecular Formula: C26H27N5O3
Formula Weight: 457.52
MOL File: 142217-81-0.mol

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2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4-(benzyloxy)-3-(benzyloxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one Property

Melting point:: 245-247°C (dec.)
Density: 1.34
storage temp.: Keep in dark place,Inert atmosphere,Room temperature
solubility: DMSO (Slightly)
form: Solid
pka: 9?+-.0.20(Predicted)
color: White to Pale Beige
CAS DataBase Reference: 142217-81-0(CAS DataBase Reference)

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Safety

HS Code: 29335990

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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

TRC

Product number: D417550
Product name: 3’,5’-Di-O-benzylEntecavir
Packaging: 1g
Price: $425
Updated: 2021/12/16

TRC

Product number: D417550
Product name: 3’,5’-Di-O-benzylEntecavir
Packaging: 25mg
Price: $155
Updated: 2021/12/16

Matrix Scientific

Product number: 093988
Product name: 2-Amino-9-((1S,3R,4S)-4-(benzyloxy)-3-((benzyloxy)-methyl)-2-methylenecyclopentyl)-1H-purin-6(9H)-one
Purity: 95+%
Packaging: 1g
Price: $1428
Updated: 2021/12/16

AK Scientific

Product number: X6283
Product name: 2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4-(benzyloxy)-3-(benzyloxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one
Packaging: 1g
Price: $523
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: NUC0000801
Product name: (1S,3R,4S)-2-AMINO-9-[4-(BENZYLOXY)-3-(BENZYLOXYMETHYL)-2-METHYLIDENE-CYCLOPENTYL]-3H-PURIN-6-ONE
Purity: 95.00%
Packaging: 25MG
Price: $525
Updated: 2021/12/16

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2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4-(benzyloxy)-3-(benzyloxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one Chemical Properties,Usage,Production

Chemical Properties

White powder

Uses

3’5’Di-O-benzyl Entecavir is an intermediate in the preparation of the hepatitis B antiviral agent, Entecavir (E558900).

Uses

3’,5’-Di-O-benzyl Entecavir is an intermediate in the preparation of the hepatitis B antiviral agent, Entecavir (E558900).

2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4-(benzyloxy)-3-(benzyloxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one Preparation Products And Raw materials

Raw materials

Preparation Products

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2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4-(benzyloxy)-3-(benzyloxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one Suppliers

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J & K SCIENTIFIC LTD.

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View Lastest Price from 2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4-(benzyloxy)-3-(benzyloxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one manufacturers

Henan Fengda Chemical Co., Ltd

Product: 2-amino-9-((1S,3R,4S)-4-(benzyloxy)-3-(benzyloxymethyl)-2-methylenecyclopentyl)-1H-purin-6(9H)-one 142217-81-0
Price: US $30.00-0.90/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: g-kg-tons, free sample is available
Release date: 2024-04-26

Longyan Tianhua Biological Technology Co., Ltd

Product: 2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4-(benzyloxy)-3-(benzyloxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one 142217-81-0
Price: US $20.00/KG
Min. Order: 1KG
Purity: 99
Supply Ability: 999
Release date: 2020-10-26

Shaanxi Dideu Medichem Co. Ltd

Product: 2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4-(benzyloxy)-3-(benzyloxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one 142217-81-0
Price: US $0.10/KG
Min. Order: 1KG
Purity: 99.0%
Supply Ability: 1000 tons
Release date: 2020-04-27

142217-81-0, 2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4-(benzyloxy)-3-(benzyloxymethyl)-2-methylenecyclopentyl]-6H-purin-6-oneRelated Search:

EC 2.6.1.2 TERT-AMYL METHYL ETHER Methyl salicylate Kresoxim-methyl 4-Methoxybenzylchloride Methyl acetate Tribenuron methyl Thiophanate-methyl Cyclopentyl methyl ether Acetaminophen METSULFURON METHYL (1S,2R,3S,5R)-3-(Phenymethyloxy)-2-(phenylmethoxy)methyl-6-oxabicyclo[3.1.0]hexane Methyl Entecavir hydrate 6-(Benzyloxy)-9-[(1S,3R,4S)-2-methylene-4-(phenylmethoxy)-3-[(phenylmethoxy)methyl]cyclopentyl]-9H-purine-2-amine (1S,2S,3S,5S)-5-(2-Amino-6-(benzyloxy)-9H-purin-9-yl)-3-(benzyloxy)-2-(benzyloxymethyl)cyclopentanol 6-(Benzyloxy)-9-((1S,3S)-4-(benzyloxy)-3-((benzyloxy)methyl)-2-methylenecyclopentyl)-N-((4-methoxyphenyl)diphenylmethyl)-9H-purin-2-amine 2-AMino-1,9-dihydro-9-[(1S,3R,4S)-4-(hydroxydiMethylsilyl)-3-(hydroxyMethyl)-2-Methylenecyclopentyl]-6H-purin-6-one

Entecavir InterMediate VIII IsoMer

2-aMino-1,9-dihydro-9-[(1S,3R,4S)-2-Methylene-4-(benzyloxy)-3-[(benzyloxy)Methyl]cyclopentyl]-6H-Purin-6-one

Entecavir InterMediate N-1

[1S-(1α,3α,4β)]-2-AMino-1,9-dihydro-9-[2-Methylene-4-(phenylMethoxy)-3-[(phenylMethoxy)Methyl]cyclopentyl]-6H

2-AMino-1,9-dihydro-9-[(1S,3R,4S)-2-Methylene-4-(phenylMethoxy)-3-[(phenylMethoxy)Methyl]cyclopentyl]-6H-purin-6-one

Entecavir Impurity 4

Dibenzyl Entecavir

Dibenzyl Entecavir (3',5'-Di-O-Benzyl Entecavir)

2-amino-9-[(1S,3R,4S)-4-(benzyloxy)-3-[(benzyloxy)methyl]-2-methylidenecyclopentyl]-9H-purin-6-ol

ETA/ET1/N8

3',5'-Di-O-benzyl Entecavir

2-AMino-1,9-dihydro-9-[(1S,3R,4S)-4-(benzyloxy)-3-(benzyloxyMethyl)-2-Methylenecyclopentyl]-6H-purin-6-one (interMediate 7)

2-AMino-1,9-dihydro-9-[(1S,3R,4S)-4-(benzyloxy)-3-(benzyloxyMethyl)-2-Methylenecyclopentyl]-6H-purin

2-Amino-9-((1S,3R,4S)-4-(benzyloxy)-3-((benzyloxy)-methyl)-2-methylenecyclopentyl)-1H-purin-6(9H)

6H-Purin-6-one,2-amino-1,9-dihydro-9[(1S,3R,4S)-2-methylene-4-(phenylmethoxy)-3-[([phenylmethoxy)methyl]cyclopentyl]-

N-1 Entecavir API

2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4-(benzyloxy)-3-(benzyloxymethyl)-2-methylenecyclopentyl]-6H-p

Entecavir dibenzylated

2-Amino-9-((1S,3R,4S)-4-(benzyloxy)-3-((benzyloxy)-methyl)-2-methylenecyclopentyl)-1H-purin-6(

(1S,3R,4S)-2-amino-9-[4-(benzyloxy)-3-(benzyloxymethyl)-2-methylidene-cyclopentyl]-3H-purin-6-one

2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4-(benzyloxy)-3-(benzyloxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one

Entecavir-9

2-amino-9-((1S,3R,4S)-4-(benzyloxy)-3-(benzyloxymethyl)-2-methylenecyclopentyl)-1H-purin-6(9H)-one

Entecavir E8

2-AMINO-9-((1S,3R,4S)-4-(BENZYLOXY)-3-(BENZYLOXYMETHYL)-2-METHYLENECYCLOPHENTYL)-1H-PURIN-6(9H)-ONE

2-aMino-9-((1S,3R,4S)-4-(benzyloxy)-3-(benzyloxyMethyl)-2-Methylenecyclopentyl)-9H-purin-6-ol

2-aMino-9-((1S,3R,4S)-4-(benzyloxy)-3-(benzyloxyMethyl)-2-Methylenecyclopentyl)-1H-[(13)C4]purin-6(9H)-one

Entecavir impurity SRR

Entecavir Dibenzyl Impurity

2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4-(benzyloxy)-3-Chemicalbook(benzyloxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one

DIBENZYLOXY GUANINE INTERMEDIATE

2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4-(benzyloxy)-3-(benzyloxy...

US-DMF No.: 026257

2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4-(benzyloxy)-3-(benzyloxymethyl)- 2-methylenecyclopentyl]-6H-

2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4- (benzyloxy)-3- (benzyloxymethyl)-2-methylenecyclopentyl]}6H- purin-6-one(Ent-VIII)

2-Amino-1,9-dihydro-9- [(1S, 3R, 4S) -4-benzyloxy-3-benzyloxymethyl-2-methylenecyclopentyl] -6H-purine-6-one

142217-81-0

142271-81-0

142214-77-4