174487-71-9

Basic information

• Product Name: 4-{N-[(6R/6S)-2-Methyl-4-oxo-3,4,7,8-tetrahydro-6H-cyclopenta[g]quinazolin-6-yl]-N-(prop-2-ynyl)amino}benzoic acid
• Synonyms: 4-{N-[(6R/6S)-2-Methyl-4-oxo-3,4,7,8-tetrahydro-6H-cyclopenta[g]quinazolin-6-yl]-N-(prop-2-ynyl)amino}benzoic acid
• CAS NO: 174487-71-9
• Molecular Weight: 373.411
• Mol File: 174487-71-9.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: 4-{N-[(6R/6S)-2-Methyl-4-oxo-3,4,7,8-tetrahydro-6H-cyclopenta[g]quinazolin-6-yl]-N-(prop-2-ynyl)amino}benzoic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 4-{N-[(6R/6S)-2-Methyl-4-oxo-3,4,7,8-tetrahydro-6H-cyclopenta[g]quinazolin-6-yl]-N-(prop-2-ynyl)amino}benzoic acid(174487-71-9)
• EPA Substance Registry System: 4-{N-[(6R/6S)-2-Methyl-4-oxo-3,4,7,8-tetrahydro-6H-cyclopenta[g]quinazolin-6-yl]-N-(prop-2-ynyl)amino}benzoic acid(174487-71-9)

Safety Data

• Hazardous Substances Data: 174487-71-9(Hazardous Substances Data)

Upstream product

• 59856-06-3 5-acetamidoindane 
• 77-86-1 2-amino-2-hydroxymethyl-1,3-propanediol 
• 157701-04-7 N-(4-{N-[(6RS)-2-Methyl-4-oxo-3,4,7,8-tetrahydro-6H-cyclopenta[g]quinazolin-6-yl]-N-(prop-2-ynyl)amino}benzoyl)-L-glutamic acid 
• 157701-32-1 diethyl N-{p-[N-((6RS)-2-methyl-4-oxo-3-pivaloyloxymethyl-3,4,7,8-tetrahydro-6H-cyclopenta[g]quinazolin-6-yl)-N-(prop-2-ynyl)-amino]benzoyl}-L-glutamate 
• 157701-31-0 diethyl N-{p-[N-((6RS)-2-methyl-4-oxo-3-pivaloyloxymethyl-3,4,7,8-tetrahydro-6H-cyclopenta[g]quinazolin-6-yl)amino]benzoyl}-L-glutamate 
• 174487-97-9 2-methyl-3-(2,2-dimethylpropionyloxymethyl)-3,4,7,8-tetrahydro-6H-cyclopenta[g]quinazoline-4,6-dione 
• 157701-36-5 2-methyl-3-pivaloyloxymethyl-3,4,7,8-tetrahydro-6H-cyclopenta[g]-quinazolin-4-one 
• 157701-35-4 2-Methyl-3,4,7,8-tetrahydro-6H-cyclopenta[g]quinazolin-4-one 
• 157701-34-3 5-acetamido-6-cyanoindane 
• 24425-40-9 indan-5-amine 
• 501169-65-9 tert-butyl 4-(N-[(6RS)-2-methyl-4-oxo-3,4,7,8-tetrahydro-6H-cyclopenta[g]quinazolin-6-yl]amino)benzoate 
• 501169-62-6 tert-butyl 4-[N-(5-acetamido-6-cyanoindan-1-yl)amino]benzoate 
• 501169-57-9 tert-butyl 4-[N-(5-acetamido-6-bromoindan-1-yl)amino]benzoate 
• 158205-18-6 5-Acetylamino-6-bromo-1-indanone 

Downstream Products

• 277758-31-3 methyl (2S)-2-{4-[N-((6RS)-2-methyl-4-oxo-3,4,7,8-tetrahydro-6H-cyclopenta[g]quinazolin-6-yl)-N-(prop-2-ynyl)amino]benzamido}-5-(1H-1,2,4-triazol-3-ylsulfonyl)pentanoate 
• 277758-29-9 methyl (2S)-2-[4-[N-((6RS)-2-methyl-4-oxo-3,4,7,8-tetrahydro-6H-cyclopenta[g]quinazolin-6-yl)-N-(prop-2-ynyl)amino]benzamido]-4-(1-ethoxycarbonylpropyltetrazol-5-yl)butyrate 
• 277758-30-2 methyl (2S)-2-{4-[N-((6RS)-2-methyl-4-oxo-3,4,7,8-tetrahydro-6H-cyclopenta[g]quinazolin-6-yl)-N-(prop-2-ynyl)amino]benzamido}-4-{1[((1R)-1-(methoxycarbonyl)ethyl)carbamoylmethyl]tetrazol-5-yl}butyrate 
• 174488-24-5 tert-butyl (4R)-4-{N-{N-{4-[N-((6RS)-2-methyl-4-oxo-3,4,7,8-tetrahydro-6H-cyclopenta[g]quinazolin-6-yl)-N-(prop-2-ynyl)amino]benzoyl}-α-tert-butyl-L-γ-glutamyl}amino}-4-(5-tetrazolyl)butyrate 
• 174488-06-3 methyl (2S)-2-{N-{N-{4-[N-((6RS)-2-methyl-4-oxo-3,4,7,8-tetrahydro-6H-cyclopenta[g]quinazolin-6-yl)-N-(prop-2-ynyl)amino]benzoyl}-α-methyl-L-γ-glutamyl}amino}-4-(1-methoxycarbonylmethyltetrazol-5-yl)butyrate 
• 238413-07-5 Pentafluorophenyl 4-{N-[(6S)-2,3-dimethyl-4-oxo-3,4,7,8-tetrahydro-6H-cyclopenta[g]quinazolin-6-yl]-N-(prop-2-ynyl)amino}benzoate 
• 157743-83-4 tri-tert-butyl N-{N-{4-[N-((6RS)-2-methyl-4-oxo-3,4,7,8-tetrahydro-6H-cyclopenta[g]quinazolin-6-yl)-N-(prop-2-ynyl)amino]benzoyl}-L-γ-glutamyl}-D-glutamate 
• 277758-34-6 (1R)-N-{α-tert-butyl-N-{4-[N-((6RS)-2-methyl-4-oxo-3,4,7,8-tetrahydro-6H-cyclopenta[g]quinazolin-6-yl)-N-(prop-2-ynyl)amino]benzoyl}-L-γ-glutamyl}-1-(phenylsulfonylcarbamoyl)ethylamine 
• 277758-33-5 (1R)-N-{α-tert-butyl-N-{4-[N-((6RS)-2-methyl-4-oxo-3,4,7,8-tetrahydro-6H-cyclopenta[g]quinazolin-6-yl)-N-(prop-2-ynyl)amino]benzoyl}-L-γ-glutamyl}-1-(5-tetrazolyl)butylamine 
• 277758-32-4 (1R)-N-{α-tert-butyl-N-{4-[N-((6RS)-2-methyl-4-oxo-3,4,7,8-tetrahydro-6H-cyclopenta[g]quinazolin-6-yl)-N-(prop-2-ynyl)amino]benzoyl}-L-γ-glutamyl}-1-(5-tetrazolyl)ethylamine 

Relevant articles and documents

Antifolate chemistry: Synthesis of 4-{N-[(6RS)-2-methyl-4-oxo- 3,4,7,8-tetrahydro-6H-cyclopenta[g]quinazolin-6-yl]-N-(prop-2-ynyl)amino}benzoic acid via a (propargyl)Co2(CO)6+ complex

A new route to compound 3 (4-{N-[(6RS)-2-methyl-4-oxo-3,4,7,8- tetrahydro-6H-cyclopenta[g]quinazolin-6-yl]-N-(prop-2-ynyl)amino}benzoic acid), a crucial intermediate for the synthesis of potent inhibitors of thymidylate synthase (TS), is described. In this sequence the C6-N10 bond was constructed first, by the reductive amination of 5-acetamido-6-bromoindan-1-one 6 with tert-butyl 4-aminobenzoate, then the cyclopenta[g]quinazolinone ring was formed and the propargyl group was introduced on the N10-position using the (propargyl)Co2(CO)6+ complex as the electrophilic propargyl reagent.

Chemoenzymatic preparation of the novel antifolate thymidylate synthase inhibitor N-(4-{N-[(65)-2-methyl-4-oxo-3, 4, 7, 8-tetrahydro-6-cydopenta[#]quinazolin-6-yl]-Ar-(prop-2-ynyl)amino}-benzoyl)-L- glutamic acid and its glutamyl cleavage product

5-Aminoindane was converted in six steps to the cyclopenta[g]quinazoline ketone 13. Condensation of 13 with diethyl 4-aminobenzoyl-L-glutamate, followed by in situ reduction, produced the secondary amine 15. W-Propargylation of 15, followed by deprotection, gave the diacid 17 as a mixture of diastereoisomers. Treatment of 17 with the bacterial enzyme carboxypeptidase G2 resulted in removal of the L-glutamic acid residue from (6/J)-17 to give a chromatographically separable mixture of the monoacid 18 and the antifolate 5 [(65)-17], which was assayed as an inhibitor of thymidylate synthase (Kfpp = 3 nM). Treatment of isolated diacid 5 with carboxypeptidase G2 produced the monoacid 19 in ;. 98% enantiomeric excess. The (65) stereochemistry of compound 19 has been established by X-ray crystal structure determination of the amide derivative 24.

Tricyclic compounds with pharmaceutical activity

The invention relates to tricyclic compounds of formula (I) STR1 wherein R1 is hydrogen, amino, (1-4C)alkyl, (1-4C)alkoxy, hydroxy-(1-4C)alkyl or fluoro-(1-4C)alkyl; R2 is hydrogen, (1-4C)alkyl, (3-4C)alkenyl, (3-4C)alkynyl, hydroxy-(2-4C)alkyl, halogeno-(2-4C)alkyl or cyano-(1-4C)alkyl; Ar is optionally-substituted phenylene, thiophenediyl, thiazolediyl, pyridinediyl or pyrimidinediyl; and R3 includes a group of the formula --NHCH(CO2 H)--A1 --Y1 wherein A1 is (1-6C)alkylene and Y1 is carboxy, tetrazol-5-yl, N-?(1-4C)alkylsulphonyl!carbamoyl, N(phenylsulphonyl)carbamoyl, tetrazol-5-ylthio, tetrazol-5-ylsulphinyl or tetrazol-5-ylsulphonyl; or pharmaceutically-acceptable salts or esters thereof; to processes for their manufacture; to pharmaceutical compositions containing them; and to their use as anti-cancer agents.