142217-81-0
142217-81-0 structure
- Name: 2-amino-9-((1S,3R,4S)-4-(benzyloxy)-3-(benzyloxymethyl)-2-methylenecyclopentyl)-1H-purin-6(9H)-one
- Chemical Name: 2-amino-9-((1S,3R,4S)-4-(benzyloxy)-3-(benzyloxymethyl)-2-methylenecyclopentyl)-1H-purin-6(9H)-one
- CAS Number: 142217-81-0
- Molecular Formula: C26H27N5O3
- Molecular Weight: 457.524
- Create Date: 2018-05-18 08:00:00
- Modify Date: 2026-07-08 10:16:15
| Name | 2-amino-9-((1S,3R,4S)-4-(benzyloxy)-3-(benzyloxymethyl)-2-methylenecyclopentyl)-1H-purin-6(9H)-one |
|---|---|
| Synonyms |
2-Amino-1,9-dihydro-9-[(1S,3R,4S)-2-Methylene-4-(phenylMethoxy)-3-[(phenylMethoxy)Methyl]cyclopentyl]-6H-purin-6-one
3',5'-Di-O-benzyl Entecavir 2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4-(benzyloxy)-3-(benzyloxymethyl)-2-methylenecyclopentyl]-6H-p 2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4- (benzyloxy)-3- (benzyloxymethyl)-2-methylenecyclopentyl]}6H- purin-6-one(Ent-VIII) 2-Amino-9-{(1S,3R,4S)-4-(benzyloxy)-3-[(benzyloxy)methyl]-2-methylenecyclopentyl}-1,9-dihydro-6H-purin-6-one 2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4-(benzyloxy)-3-(benzyloxyMethyl)-2-Methylenecyclopentyl]-6H-purin Entecavir InterMediate N-1 (1S,3R,4S)-2-amino-9-[4-(benzyloxy)-3-(benzyloxymethyl)-2-methylidene-cyclopentyl]-3H-purin-6-one 3’,5’-Di-O-benzyl Entecavir 2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4-(benzyloxy)-3-(benzyloxy Entecavir Impurity 16 Entecavir Impurity 4 ETA/ET1/N8 6H-Purin-6-one,2-amino-1,9-dihydro-9[(1S,3R,4S)-2-methylene-4-(phenylmethoxy)-3-[([phenylmethoxy)methyl]cyclopentyl] 2-Amino-9-((1S,3R,4S)-4-(benzyloxy)-3-((benzyloxy)-methyl)-2-methylenecyclopentyl)-1H-purin-6(9H) 2-amino-9-[(1S,3R,4S)-4-(benzyloxy)-3-[(benzyloxy)methyl]-2-methylidenecyclopentyl]-9H-purin-6-ol Dibenzyl Entecavir (3',5'-Di-O-Benzyl Entecavir) Entecavir E8 2-Amino-9-((1S,3R,4S)-4-(benzyloxy)-3-((benzyloxy)-methyl)-2-methylenecyclopentyl)-1H-purin-6( Dibenzyl Entecavir DIBENZYLOXY GUANINE INTERMEDIATE 2-Amino-1,9-dihydro-9- [(1S, 3R, 4S) -4-benzyloxy-3-benzyloxymethyl-2-methylenecyclopentyl] -6H-purine-6-one 2-amino-9-((1S,3R,4S)-4-(benzyloxy)-3-(benzyloxyMethyl)-2-Methylenecyclopentyl)-1H-[C4]purin-6(9H)-one 2-Amino-1,9-dihydro-9-[(1S,3R,4S)-4-(benzyloxy)-3-(benzyloxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one Entecavir InterMediate VIII IsoMer US-DMF No. [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-(benzyloxy)-3-[(benzyloxy)Methyl]cyclopentyl]-6H-Purin-6-one Entecavir dibenzylated Entecavir impurity SRR 2-amino-9-((1S,3R,4S)-4-(benzyloxy)-3-(benzyloxyMethyl)-2-Methylenecyclopentyl)-9H-purin-6-ol 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 Entecavir-9 2-AMINO-9-((1S,3R,4S)-4-(BENZYLOXY)-3-(BENZYLOXYMETHYL)-2-METHYLENECYCLOPHENTYL)-1H-PURIN-6(9H)-ONE N-1 Entecavir API Entecavir Dibenzyl Impurity |
| Density | 1.3±0.1 g/cm3 |
|---|---|
| Molecular Formula | C26H27N5O3 |
| Molecular Weight | 457.524 |
| Exact Mass | 457.211395 |
| PSA | 108.05000 |
| LogP | 3.97 |
| Index of Refraction | 1.679 |
| Precursor 10 | |
|---|---|
| DownStream 1 | |
![(1S,2R,3S,5R)-3-phenylmethoxy-2-(phenylmethoxymethyl)-6-oxabicyclo[3.1.0]hexane structure](https://image.chemsrc.com/caspic/223/110567-22-1.png)
![(1S,2R,3S,5R)-2-(Benzyloxymethyl)-6-oxabicyclo[3.1.0]hexan-3-ol structure](https://image.chemsrc.com/caspic/455/117641-39-1.png)
![(1S,2R)-2-[(Benzyloxy)methyl]-3-cyclopenten-1-ol structure](https://image.chemsrc.com/caspic/261/110567-21-0.png)
![5-[2-[[(4-Methoxyphenyl)diphenylmethyl]amino]-6-(phenylmethoxy)-9H-purin-9-yl]-3-(phenylmethoxy)-2-[(phenylmethoxy)methyl]cyclopentanol structure](https://image.chemsrc.com/caspic/485/142217-78-5.png)
![(2R,3S,5S)-5-[2-[[(4-methoxyphenyl)-diphenylmethyl]amino]-6-phenylmethoxypurin-9-yl]-3-phenylmethoxy-2-(phenylmethoxymethyl)cyclopentan-1-one structure](https://image.chemsrc.com/caspic/447/142217-79-6.png)
