N-[(S)-(4-Nitrophenoxy)phenoxyphosphinyl]-L-alanine 1-Methylethyl ester

CAS NO.：1256490-31-9
Empirical Formula: C18H21N2O7P
Molecular Weight: 408.34
MDL number: MFCD28978357
EINECS: 1312995-182-4
SAFETY DATA SHEET (SDS)
Update Date: 2026-04-24 14:58:40

What is N-[(S)-(4-Nitrophenoxy)phenoxyphosphinyl]-L-alanine 1-Methylethyl ester?

The Uses of N-[(S)-(4-Nitrophenoxy)phenoxyphosphinyl]-L-alanine 1-Methylethyl ester

N-[(S)-(4-Nitrophenoxy)phenoxyphosphinyl]-L-alanine 1-Methylethyl Ester is an intermediate in the synthesis of Sofosbuvir (R)-Phosphate (S675615), which is an impurity of PSI-7977 (P839640), a prodrug that is metabolized to the active antiviral agent 2''-deoxy-2''-α-fluoro-β-C-methyluridine-5''-monophosphate and is currently being investigated in phase 3 clinical trials for the treatment of hepatitis C. Studies have profiled PSI-7977 as a nucleotide inhibitor of hepatitis C virus, exerting selective inhibitory effects towards HCV NS5B polymerase.

Properties of N-[(S)-(4-Nitrophenoxy)phenoxyphosphinyl]-L-alanine 1-Methylethyl ester

Melting point:	62-66℃
Boiling point:	514.3±60.0 °C(Predicted)
Density	1.302
storage temp.	2-8°C
solubility	Dichloromethane, Ethyl Acetate, Methanol
pka	-5.78±0.70(Predicted)
form	Solid
color	White to off-white

Safety information for N-[(S)-(4-Nitrophenoxy)phenoxyphosphinyl]-L-alanine 1-Methylethyl ester

Computed Descriptors for N-[(S)-(4-Nitrophenoxy)phenoxyphosphinyl]-L-alanine 1-Methylethyl ester

New Products

1-(4-methoxyphenyl)-4-(4-Nitrophenyl)Piperazine (IT-1) 1,2,3,9-Tetrahydro-9-Methyl-4H-Carbazole-4-One Dibenzo[b,f][1,4]thiazepin-11(10H)-one Cis-Tosylate Dibenzoyl-L-tartaric acid Anhydrous (Resolution Reagent) 1-Benzhydrylazetane-3-carbonitrile 8-oxa-1,3-diazaspiro[4.5]decane-2,4-dione (±)-amino(2-fluorophenyl)acetic acid 2-(2-Chlorophenyl)glycine AMINO-(3-CHLORO-PHENYL)-ACETIC ACID 2'-Fluoroacetophenone METHANOL-D1(OD) N-ETHYL-D5-AMINE HYDROCHLORIDE BENZOIC ACID-D CHLOROFORM-D BENZENE-D6 TOLUENE-D3 2-Hydroxybutanenitrile 1-Benzylindolin-2-one Ethyl 2-bromo-3-oxobutanoate 4-(3-chloropropyl)morpholine 1-Benzylindoline-2,3-dione 3-Oxocyclobutanecarboxylic acid 1-(3-Chlorophenyl)piperazine hydrochloride

Related products of tetrahydrofuran

(2S)-2-ethylbutyl 2-(((((2R,3S,4R,5R)-5-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-5-cyano-3,4-dihydroxytetrahydrofuran-2-yl)methoxy)(phenoxy)phosphoryl)amino)propanoate

Remdesivir Impurity 39

Remdesivir impurity

R-19-impurity 4

(2R,3R,4R,5R)-2-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-bis(benzyloxy)-5-((benzyloxy)methyl)tetrahydrofuran-2-ol

R-20 impurity 5

Remdesivir Impurity 44

R-18