103490-52-4

Basic information

• Product Name: Spiro[cyclobutane-1,3'-[3H]indol]-2'(1'H)-one
• Synonyms: Spiro[cyclobutane-1,3'-[3H]indol]-2'(1'H)-one
• CAS NO: 103490-52-4
• Molecular Formula: C11H11NO
• Molecular Weight: 173.214
• Mol File: 103490-52-4.mol

Chemical Properties

• CAS DataBase Reference: Spiro[cyclobutane-1,3'-[3H]indol]-2'(1'H)-one(CAS DataBase Reference)
• NIST Chemistry Reference: Spiro[cyclobutane-1,3'-[3H]indol]-2'(1'H)-one(103490-52-4)
• EPA Substance Registry System: Spiro[cyclobutane-1,3'-[3H]indol]-2'(1'H)-one(103490-52-4)

Safety Data

• Hazardous Substances Data: 103490-52-4(Hazardous Substances Data)

Upstream product

• 103490-51-3 cyclobutanecarboxylic acid 2-phenylhydrazide 
• 100-63-0 phenylhydrazine 
• 5006-22-4 Cyclobutanecarbonyl chloride 
• 59-88-1 phenylhydrazine hydrochloride 

Downstream Products

• 304875-76-1 5-(3-chlorophenyl)spiro[cyclobutane-1,3-[3H]indole]-2'(1'H)-one 
• 32670-02-3 spiro[cyclobutane-1,3’-indoline] 

Relevant articles and documents

Discovery of Sisunatovir (RV521), an Inhibitor of Respiratory Syncytial Virus Fusion

RV521 is an orally bioavailable inhibitor of respiratory syncytial virus (RSV) fusion that was identified after a lead optimization process based upon hits that originated from a physical property directed hit profiling exercise at Reviral. This exercise encompassed collaborations with a number of contract organizations with collaborative medicinal chemistry and virology during the optimization phase in addition to those utilized as the compound proceeded through preclinical and clinical evaluation. RV521 exhibited a mean IC50 of 1.2 nM against a panel of RSV A and B laboratory strains and clinical isolates with antiviral efficacy in the Balb/C mouse model of RSV infection. Oral bioavailability in preclinical species ranged from 42 to >100% with evidence of highly efficient penetration into lung tissue. In healthy adult human volunteers experimentally infected with RSV, a potent antiviral effect was observed with a significant reduction in viral load and symptoms compared to placebo.

SPIRO[CYCLOBUTANE-1,3'-INDOLIN]-2'-ONE DERIVATIVES AS BROMODOMAIN INHIBITORS

The present invention provides novel spiro[cyclobutane-1,3'-indolin]-2'- derivatives of formula (I) in which Cy R1, R2, R4, L and 'm' are have the meaning given in the specification, and pharmaceutically acceptable salts thereof. The compounds of formula (I) are useful as bromodomain inhibitors in the treatment or prevention of diseases or disorders where bromodomain inhibition is desired.

SPIRO[CYCLOBUTANE-1,3'-INDOLIN]-2'-ONE DERIVATIVES AS BROMODOMAIN INHIBITORS

The present invention provides novel spiro[cyclobutane-1,3'-indolin]-2'- derivatives of formula (I) in which Cy, R1, R2, L and 'm' are have the meaning given in the specification, and pharmaceutically acceptable salts thereof. The co

PHARMACEUTICAL COMPOUNDS

Benzimidazoles of formula (I): wherein: A is 5- to 12-membered aryl or 5- to 12-membered heteroaryl, each of which is unsubstituted or substituted; Y is a single bond, —(CH2)p—, —X—, —CH2—X—, or —X—CH2—; X is —O—, —S—, —N(R2)—, >C═O, >S(═O), >S(═O)2, —O—C(═O)—, —C(═O)—O—, N(R2)—C(═O)—, or —C(═O)—N(R2)—; each L is independently a single bond, C1-3alkylene, C2-3alkenylene or C2-3alkynylene; R1 is C1-6alkyl, C2-6alkenyl or C2-6alkynyl, each of which is unsubstituted or substituted; each Z is independently —N(R2)2, —OR2, —SR2, —S(═O)R2, —S(═O)2R2; each R2 is independently hydrogen, C1-6alkyl, C2-6alkenyl or C2-6 alkynyl, wherein said alkyl, alkenyl and alkynyl groups are unsubstituted or substituted; m is 0, 1, 2, or 3; n is 1, 2, or 3; and p is 1, 2, or 3; and the pharmaceutically acceptable salt thereof are inhibitors of RSV and can therefore be used to treat or prevent an RSV infection.

Conformationally constrained ortho- Anilino diaryl ureas: Discovery of 1-(2-(1′-Neopentylspiro[indoline-3,4′-piperidine]-1-yl)phenyl) -3-(4-(trifluoromethoxy)phenyl)urea, a potent, selective, and bioavailable P2Y1 antagonist

Preclinical antithrombotic efficacy and bleeding models have demonstrated that P2Y1 antagonists are efficacious as antiplatelet agents and may offer a safety advantage over P2Y12 antagonists in terms of reduced bleeding liabilities. In this article, we describe the structural modification of the tert-butyl phenoxy portion of lead compound 1 and the subsequent discovery of a novel series of conformationally constrained ortho-anilino diaryl ureas. In particular, spiropiperidine indoline-substituted diaryl ureas are described as potent, orally bioavailable small-molecule P2Y1 antagonists with improved activity in functional assays and improved oral bioavailability in rats. Homology modeling and rat PK/PD studies on benchmark compound 3l will also be presented. Compound 3l was our first P2Y1 antagonist to demonstrate a robust oral antithrombotic effect with mild bleeding liability in the rat thrombosis and hemostasis models.

PHARMACEUTICAL COMPOUNDS

Benzimidazoles of formula (I): wherein: A is 5-to 12-membered aryl or 5-to 12-membered heteroaryl, each of which is unsubstituted or substituted; Y is a single bond, -(CH2)p-, -X-, -CH2-X-, or -X-CH2-; X is -O-, -S-, -N(R2)-, >C=O, >S(=O), >S(=O)2, -O-C(=O)-, -C(=O)-O-, N(R2)-C(=O)-, or -C(=O)-N(R2)-; each L is independently a single bond, C1-3alkylene, C2-3alkenylene or C2-3alkynylene; R1is C1-6alkyl, C2-6alkenyl or C2-6alkynyl, each of which is unsubstituted or substituted; each Z is independently -N(R2)2, -OR2, -SR2, -S(=O)R2, -S(=O)2R2; each R2 is independently hydrogen, C1-6alkyl, C2-6alkenyl or C2-6 alkynyl, wherein said alkyl, alkenyl and alkynyl groups are unsubstituted or substituted; m is 0, 1, 2, or 3; n is 1, 2, or 3; and p is 1, 2, or 3; and the pharmaceutically acceptable salt thereof are inhibitors of RSV and can therefore be used to treat or prevent an RSV infection.

NOVEL COMPOUNDS

The present invention relates to new CGRP-antagonists of general formula I wherein U, V, X, Y, R1, R2, R3 and R4 are defined as mentioned in the description, the tautomers thereof, the isomers thereof, the diastereomers thereof, the enantiomers thereof, the hydrates thereof, the mixtures thereof and the salts thereof as well as the hydrates of the salts, particularly the physiologically acceptable salts thereof with inorganic or organic acids or bases, medicaments containing these compounds, the use thereof and processes for the preparation thereof.

New progesterone receptor antagonists: 3,3-disubstituted-5-aryloxindoles.

A new series of 3,3-disubstituted-5-aryloxindoles has been synthesized and evaluated for progesterone receptor antagonist (PR) activity in a T47D cell alkaline phosphatase assay and for their ability to bind PR in competition binding studies. In this comm