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Merck
CN

SML4046

K11777

≥98% (HPLC)

Synonym(s):

4-Methyl-N-[(1S)-2-oxo-2-[[(1S)-1-(2-phenylethyl)-3-(phenylsulfonyl)-2-propen-1-yl]amino]-1-(phenylmethyl)ethyl]-1-piperazinecarboxamide, K777, APC 3316, K 11777, K 777

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About This Item

Empirical Formula (Hill Notation):
C32H38N4O4S
CAS Number:
Molecular Weight:
574.73
NACRES:
NA.21
Assay:
≥98% (HPLC)
Form:
powder
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Quality Segment

assay

≥98% (HPLC)

form

powder

color

white to beige

solubility

DMSO: 2 mg/mL, clear

storage temp.

-10 to -25°C

SMILES string

CN1CCN(C(N[C@@H](CC2=CC=CC=C2)C(N[C@@H](CCC3=CC=CC=C3)/C=C/S(C4=CC=CC=C4)(=O)=O)=O)=O)CC1

Biochem/physiol Actions

Orally bioavailable, non-toxic, covalent inactivator of cathepsin L and other cysteine proteases including Schistosoma mansoni SmCB1 and cruzain; reduces SARS-CoV-2 viral infectivity with no effect on PLpro and Mpro.

K11777 is an orally bioavailable, non-toxic, dipeptidyl vinyl-sulfone analog that acts as a potent, covalent inactivator of cathepsin L and other cysteine proteases. Reduces SARS-CoV-2 viral infectivity (EC50 = 74, <80 and 4 nM for Vero E6, A549/ACE2, and HeLa/ACE2 cells, respectively) with no effect on papain-like (PLpro) and 3CL cysteine proteases (Mpro), encoded by SARS-CoV-2 at ≤ 100 µM. K11777 inhibits Schistosoma mansoni cathepsin B1 (SmCB1) and cruzain. Displays broad-spectrum anti-parasitic activities.


Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable



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