ChemicalBook
Chinese English Japanese Korean
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
(R)-2-TERT-BUTOXYCARBONYLAMINO-4-(4-FLUORO-PHENYL)-BUTYRIC ACID(R)-2-TERT-BUTOXYCARBONYLAMINO-4-(4-FLUORO-PHENYL)-BUTYRIC ACID
(1R)-1-[4-(TERT-BUTOXY)PHENYL]PENTYLAMINE(1R)-1-[4-(TERT-BUTOXY)PHENYL]PENTYLAMINE1213051-03-6
(S)-2-tert-Butylcarboxamide-4-tert-butoxycarbonyl piperazine(S)-2-tert-Butylcarboxamide-4-tert-butoxycarbonyl piperazine150323-35-6
(R)-2-TERT-BUTOXYCARBONYLAMINO-4-P-TOLYL-BUTYRIC ACID(R)-2-TERT-BUTOXYCARBONYLAMINO-4-P-TOLYL-BUTYRIC ACID
(1R)-1-[4-(TERT-BUTOXY)PHENYL]-2-METHYLPROPYLAMINE(1R)-1-[4-(TERT-BUTOXY)PHENYL]-2-METHYLPROPYLAMINE1213942-60-9
(R)-TERT-BUTYL 2-(2-CYANOPHENYL)PYRROLIDINE-1-CARBOXYLATE(R)-TERT-BUTYL 2-(2-CYANOPHENYL)PYRROLIDINE-1-CARBOXYLATE
(R)-3-tert-Butyloxycarbonyl-2-methylpropanoic acid(R)-3-tert-Butyloxycarbonyl-2-methylpropanoic acid
(3R)-3-[(TERT-BUTYLDIMETHYLSILYL)OXY] PENTANEDIOIC ACID,1-R-MANDELIC ACID ESTER(3R)-3-[(TERT-BUTYLDIMETHYLSILYL)OXY] PENTANEDIOIC ACID,1-R-MANDELIC ACID ESTER
r-(-)-3-tert-butylamino-1,2-propandiolr-(-)-3-tert-butylamino-1,2-propandiol
(2R)-2-[(TERT-BUTOXYCARBONYL)AMINO]-3-(2,5-DIFLUOROPHENYL)PROPANOIC ACID(2R)-2-[(TERT-BUTOXYCARBONYL)AMINO]-3-(2,5-DIFLUOROPHENYL)PROPANOIC ACID261380-31-8
(R)-TERT-BUTYL 1-(6-BROMO-5-METHYLPYRIDIN-3-YLAMINO)-3-(TERT-BUTYLTHIO)-1-OXOPROPAN-2-YLCARBAMATE(R)-TERT-BUTYL 1-(6-BROMO-5-METHYLPYRIDIN-3-YLAMINO)-3-(TERT-BUTYLTHIO)-1-OXOPROPAN-2-YLCARBAMATE850411-22-2
(R)-3-(4-TERT-BUTYL-PHENYL)-PIPERAZIN-2-ONE(R)-3-(4-TERT-BUTYL-PHENYL)-PIPERAZIN-2-ONE
(R)-2-(1-(TERT-BUTOXYCARBONYL)PYRROLIDIN-3-YL)BENZOIC ACID(R)-2-(1-(TERT-BUTOXYCARBONYL)PYRROLIDIN-3-YL)BENZOIC ACID2361926-06-7
(R)-2-(1-(TERT-BUTOXYCARBONYL)PYRROLIDIN-2-YL)BENZOIC ACID(R)-2-(1-(TERT-BUTOXYCARBONYL)PYRROLIDIN-2-YL)BENZOIC ACID
(R)-2-TERT-BUTOXYCARBONYLAMINO-3-(2-METHOXY-PHENYL)-PROPIONIC ACID(R)-2-TERT-BUTOXYCARBONYLAMINO-3-(2-METHOXY-PHENYL)-PROPIONIC ACID
(R)-2-TERT-BUTOXYCARBONYLAMINO-4-(2-CHLORO-PHENYL)-BUTYRIC ACID(R)-2-TERT-BUTOXYCARBONYLAMINO-4-(2-CHLORO-PHENYL)-BUTYRIC ACID
(2R)-[(tert-butoxycarbonyl)amino](3-fluorophenyl)ethanoic acid(2R)-[(tert-butoxycarbonyl)amino](3-fluorophenyl)ethanoic acid
(2R)-[(tert-butoxycarbonyl)amino][3-(trifluoromethyl)phenyl]ethanoic acid(2R)-[(tert-butoxycarbonyl)amino][3-(trifluoromethyl)phenyl]ethanoic acid
(R)-TERT-BUTYL-2-((BENZYLOXYCARBONYLAMINO)METHYL)PYRROLIDINE-1-CARBOXYLATE(R)-TERT-BUTYL-2-((BENZYLOXYCARBONYLAMINO)METHYL)PYRROLIDINE-1-CARBOXYLATE
(R)-3-TERT-BUTOXYCARBONYLAMINO-4-CYCLOHEXYL-BUTYRIC ACID(R)-3-TERT-BUTOXYCARBONYLAMINO-4-CYCLOHEXYL-BUTYRIC ACID321330-09-0
(2R)-[(tert-butoxycarbonyl)amino](4-fluorophenyl)ethanoic acid(2R)-[(tert-butoxycarbonyl)amino](4-fluorophenyl)ethanoic acid
1-((R)-2-TERT-BUTOXYCARBONYLAMINO-1-METHYL-ETHYL)-6-CHLORO-7-METHYL-1H-INDOLE-2-CARBOXYLIC ACID ETHYL ESTER1-((R)-2-TERT-BUTOXYCARBONYLAMINO-1-METHYL-ETHYL)-6-CHLORO-7-METHYL-1H-INDOLE-2-CARBOXYLIC ACID ETHYL ESTER
(R)-2-TERT-BUTOXYCARBONYLAMINO-4-(3-METHOXY-PHENYL)-BUTYRIC ACID(R)-2-TERT-BUTOXYCARBONYLAMINO-4-(3-METHOXY-PHENYL)-BUTYRIC ACID
(R)-2-TERT-BUTOXYCARBONYLAMINO-3-(3,5-DICHLORO-PHENYL)-PROPIONIC ACID(R)-2-TERT-BUTOXYCARBONYLAMINO-3-(3,5-DICHLORO-PHENYL)-PROPIONIC ACID
(R)-2-((4-TERT-BUTOXYCARBONYLAMINOMETHYL)-BENZENESULFONYLAMINO)-PROPIONIC ACID(R)-2-((4-TERT-BUTOXYCARBONYLAMINOMETHYL)-BENZENESULFONYLAMINO)-PROPIONIC ACID
(R)-TERT-BUTYL 2-(4-AMINOPHENYL)PYRROLIDINE-1-CARBOXYLATE(R)-TERT-BUTYL 2-(4-AMINOPHENYL)PYRROLIDINE-1-CARBOXYLATE
(R)-(3-TERT-BUTYL-OXIRANYL)-CYCLOHEXYL-METHANOL(R)-(3-TERT-BUTYL-OXIRANYL)-CYCLOHEXYL-METHANOL
(R)-3-TERT-BUTOXYCARBONYLAMINO-3-(4-ISOPROPYL-PHENYL)-PROPIONIC ACID(R)-3-TERT-BUTOXYCARBONYLAMINO-3-(4-ISOPROPYL-PHENYL)-PROPIONIC ACID
(R)-2-TERT-BUTOXYCARBONYLAMINO-3-METHYL-BUT-3-ENOIC ACID(R)-2-TERT-BUTOXYCARBONYLAMINO-3-METHYL-BUT-3-ENOIC ACID
(R)-TERT-BUTOXYCARBONYLAMINO-(1H-INDOL-3-YL)-ACETIC ACID(R)-TERT-BUTOXYCARBONYLAMINO-(1H-INDOL-3-YL)-ACETIC ACID
(2R)-[(tert-butoxycarbonyl)amino](cyclohexyl)ethanoic acid(2R)-[(tert-butoxycarbonyl)amino](cyclohexyl)ethanoic acid
(1R)-1-(3-[4-(TERT-BUTYL)PHENOXY]PHENYL)ETHYLAMINE(1R)-1-(3-[4-(TERT-BUTYL)PHENOXY]PHENYL)ETHYLAMINE
(2R)-2-[(tert-butoxycarbonyl)amino]-3-(3,4-difluorophenyl)propanoic acid(2R)-2-[(tert-butoxycarbonyl)amino]-3-(3,4-difluorophenyl)propanoic acid
(R)-2-(TERT-BUTOXYCARBONYLAMINO-METHYL)-3-FURAN-2-YL-PROPIONIC ACID(R)-2-(TERT-BUTOXYCARBONYLAMINO-METHYL)-3-FURAN-2-YL-PROPIONIC ACID
(R)-2-TERT-BUTYLOXYCARBONYLAMINO-PENTANE-1,5-DIOL(R)-2-TERT-BUTYLOXYCARBONYLAMINO-PENTANE-1,5-DIOL397246-12-7
(R)-3-tert-Butoxy-2-aminopropanamide(R)-3-tert-Butoxy-2-aminopropanamide211755-73-6
BunololBunolol27591-01-1
Boc-D-homophenylalanineBoc-D-homophenylalanine82732-07-8
(R)-2-TERT-BUTOXYCARBONYLAMINO-3-(2,5-DICHLORO-PHENYL)-PROPIONIC ACID(R)-2-TERT-BUTOXYCARBONYLAMINO-3-(2,5-DICHLORO-PHENYL)-PROPIONIC ACID
(R)-2-(TERT-BUTOXYCARBONYLAMINO-METHYL)-3-(4-TERT-BUTYL-PHENYL)-PROPIONIC ACID(R)-2-(TERT-BUTOXYCARBONYLAMINO-METHYL)-3-(4-TERT-BUTYL-PHENYL)-PROPIONIC ACID
(R)-3-TERT-BUTOXYCARBONYLAMINO-3-FURAN-2-YL-PROPIONIC ACID ETHYL ESTER(R)-3-TERT-BUTOXYCARBONYLAMINO-3-FURAN-2-YL-PROPIONIC ACID ETHYL ESTER
(R)-TERT-BUTOXYCARBONYLAMINO-(4-ISOPROPYL-PHENYL)-ACETIC ACID(R)-TERT-BUTOXYCARBONYLAMINO-(4-ISOPROPYL-PHENYL)-ACETIC ACID
[R,(-)]-tert-Butyl 2-methylbutyl sulfide[R,(-)]-tert-Butyl 2-methylbutyl sulfide
(2R)-1-tert-Butyloxycarbonyl-4-chloro-1,2,5,6-tetrahydro-2α-methyl-6β-undecylpyridine(2R)-1-tert-Butyloxycarbonyl-4-chloro-1,2,5,6-tetrahydro-2α-methyl-6β-undecylpyridine
(R)-4-(tert-Butyldimethylsiloxy)-6-[(2-methoxyethoxy)methoxy]hexanoic acid methyl ester(R)-4-(tert-Butyldimethylsiloxy)-6-[(2-methoxyethoxy)methoxy]hexanoic acid methyl ester
(2R)-2-(tert-Butyldimethylsilyloxy)propanal(2R)-2-(tert-Butyldimethylsilyloxy)propanal
(2R)-3-[[(tert-Butyldimethylsilyl)oxy]methyl]-4-methyl-2-[(1E)-3-phenylthio-2-methyl-1-propenyl]-2,5-dihydrofuran(2R)-3-[[(tert-Butyldimethylsilyl)oxy]methyl]-4-methyl-2-[(1E)-3-phenylthio-2-methyl-1-propenyl]-2,5-dihydrofuran
(2R)-5-[(tert-Butyldimethylsilyl)oxy]pentane-1,2-diol(2R)-5-[(tert-Butyldimethylsilyl)oxy]pentane-1,2-diol
(20R)-17,21-[(tert-Butylboranediyl)bis(oxy)]-20-hydroxypregn-4-en-3-one(20R)-17,21-[(tert-Butylboranediyl)bis(oxy)]-20-hydroxypregn-4-en-3-one30888-43-8
(R)-2-[(tert-Butoxycarbonyl)amino]-3-[(2,2,2-trichloroethoxycarbonyl)thio]propanal(R)-2-[(tert-Butoxycarbonyl)amino]-3-[(2,2,2-trichloroethoxycarbonyl)thio]propanal
[R,(+)]-β-tert-Butylphenethyl alcohol[R,(+)]-β-tert-Butylphenethyl alcohol
[R,(+)]-α-tert-Butyl-1,3-dioxo-2-isoindolineacetic acid[R,(+)]-α-tert-Butyl-1,3-dioxo-2-isoindolineacetic acid
(7R)-7β-[(1-tert-Butoxycarbonylmethyl-1H-benzimidazol-2-yl)amino]-3-methylcepham-3-ene-4-carboxylic acid tert-butyl ester(7R)-7β-[(1-tert-Butoxycarbonylmethyl-1H-benzimidazol-2-yl)amino]-3-methylcepham-3-ene-4-carboxylic acid tert-butyl ester
(2R)-4α-tert-Butyl-2-tert-butyladamantane(2R)-4α-tert-Butyl-2-tert-butyladamantane
(2R)-1-tert-Butyloxycarbonyl-4-chloro-1,2,5,6-tetrahydro-6α-methyl-2α-undecylpyridine(2R)-1-tert-Butyloxycarbonyl-4-chloro-1,2,5,6-tetrahydro-6α-methyl-2α-undecylpyridine
(4R)-2-(tert-Butyldimethylsilyl)-4-[(R)-1-hydroxyethyl]-1,2-thiazetidine 1,1-dioxide(4R)-2-(tert-Butyldimethylsilyl)-4-[(R)-1-hydroxyethyl]-1,2-thiazetidine 1,1-dioxide
(20R)-17,20-[(tert-Butylboranediyl)bis(oxy)]-5β-pregna-3α,11β-diol(20R)-17,20-[(tert-Butylboranediyl)bis(oxy)]-5β-pregna-3α,11β-diol30882-63-4
(1R)-3α-(tert-Butyldimethylsilyloxy)-2β-[(S)-3-(tert-butyldimethylsilyloxy)-3-cyclohexyl-1-propynyl]-8-methylbicyclo[4.2.0]octan-7-one(1R)-3α-(tert-Butyldimethylsilyloxy)-2β-[(S)-3-(tert-butyldimethylsilyloxy)-3-cyclohexyl-1-propynyl]-8-methylbicyclo[4.2.0]octan-7-one
(3R)-3α-[(tert-Butyldimethylsilyl)oxy]-1-phenylsulfonylcyclohexene(3R)-3α-[(tert-Butyldimethylsilyl)oxy]-1-phenylsulfonylcyclohexene
(3R)-3-(tert-Butyldimethylsilyloxy)-5-oxo-6-(dimethoxyphosphinyl)hexanoic acid methyl ester(3R)-3-(tert-Butyldimethylsilyloxy)-5-oxo-6-(dimethoxyphosphinyl)hexanoic acid methyl ester
(2R)-1-tert-Butoxycarbonyl-3α-phenylpyrrolidine-2β-carboxylic acid(2R)-1-tert-Butoxycarbonyl-3α-phenylpyrrolidine-2β-carboxylic acid
(R)-1-(tert-Butylamino)-3-[(2-methyl-1H-indol-4-yl)oxy]-2-benzoyloxypropane(R)-1-(tert-Butylamino)-3-[(2-methyl-1H-indol-4-yl)oxy]-2-benzoyloxypropane
(6R)-3β-tert-Butyl-5,7-dioxadispiro[5.1.5.2]pentadec-14-ene(6R)-3β-tert-Butyl-5,7-dioxadispiro[5.1.5.2]pentadec-14-ene
(2R)-4β-tert-Butyl-2-tert-butyladamantan-2β-ol(2R)-4β-tert-Butyl-2-tert-butyladamantan-2β-ol
(R)-2-[(tert-Butyloxycarbonyl)amino]-5-[(4R)-2,2-dimethyl-1,3-dioxolan-4α-yl]pentanoic acid benzyl ester(R)-2-[(tert-Butyloxycarbonyl)amino]-5-[(4R)-2,2-dimethyl-1,3-dioxolan-4α-yl]pentanoic acid benzyl ester
(2R)-1-tert-Butyloxycarbonyl-4-chloro-1,2,5,6-tetrahydro-2α-methyl-6β-propylpyridine(2R)-1-tert-Butyloxycarbonyl-4-chloro-1,2,5,6-tetrahydro-2α-methyl-6β-propylpyridine
(1R)-1β-[(tert-Butyldimethylsiloxy)methyl]-2,2-dimethyl-3α-(2-methyl-1-propenyl)cyclopropane(1R)-1β-[(tert-Butyldimethylsiloxy)methyl]-2,2-dimethyl-3α-(2-methyl-1-propenyl)cyclopropane
(R)-3-TERT-BUTOXYCARBONYLAMINO-3-(2,4,5-TRIMETHOXY-PHENYL)-PROPIONIC ACID(R)-3-TERT-BUTOXYCARBONYLAMINO-3-(2,4,5-TRIMETHOXY-PHENYL)-PROPIONIC ACID
(R)-TERT-BUTYL 4-(2-HYDROXYETHYL)-2,2-DIMETHYLOXAZOLIDINE-3-CARBOXYLATE(R)-TERT-BUTYL 4-(2-HYDROXYETHYL)-2,2-DIMETHYLOXAZOLIDINE-3-CARBOXYLATE201404-86-6
(R)-2-(tert-butoxycarbonylamino)-5,5,5-trifluoropentanoic acid(R)-2-(tert-butoxycarbonylamino)-5,5,5-trifluoropentanoic acid
(R)-TERT-BUTOXYCARBONYLAMINO-(3,5-DIFLUORO-PHENYL)-ACETIC ACID(R)-TERT-BUTOXYCARBONYLAMINO-(3,5-DIFLUORO-PHENYL)-ACETIC ACID
(R)-1-tert-butyl 2-methyl 4-oxopyrrolidine-1,2-dicarboxylate(R)-1-tert-butyl 2-methyl 4-oxopyrrolidine-1,2-dicarboxylate
(R)-TERT-BUTYL 1-AMINO-3,3-DIMETHYLBUTAN-2-YLCARBAMATE(R)-TERT-BUTYL 1-AMINO-3,3-DIMETHYLBUTAN-2-YLCARBAMATE958281-81-7
(R)-tert-butyl 2-(2-aminothiazol-4-yl)pyrrolidine-1-carboxylate(R)-tert-butyl 2-(2-aminothiazol-4-yl)pyrrolidine-1-carboxylate
(R)-7-tert-Butoxycarbonylamino-5-azaspiro[2.4]heptane(R)-7-tert-Butoxycarbonylamino-5-azaspiro[2.4]heptane
2-((R)-3-(tert-butoxycarbonylamino)pyrrolidin-1-yl)-2-m-tolylacetic acid2-((R)-3-(tert-butoxycarbonylamino)pyrrolidin-1-yl)-2-m-tolylacetic acid
(R)-tert-Leucinol hydrochloride(R)-tert-Leucinol hydrochloride
(2R)-2-[(tert-butoxycarbonyl)amino]-3-(pentafluorophenyl)propanoic acid(2R)-2-[(tert-butoxycarbonyl)amino]-3-(pentafluorophenyl)propanoic acid
(R)-2-TERT-BUTOXYCARBONYLAMINO-3-(3-HYDROXY-PHENYL)-PROPIONIC ACID(R)-2-TERT-BUTOXYCARBONYLAMINO-3-(3-HYDROXY-PHENYL)-PROPIONIC ACID
(2R)-[(tert-butoxycarbonyl)amino](2-chlorophenyl)ethanoic acid(2R)-[(tert-butoxycarbonyl)amino](2-chlorophenyl)ethanoic acid
(R)-2-TERT-BUTOXYCARBONYLAMINO-3-(2-HYDROXY-PHENYL)-PROPIONIC ACID(R)-2-TERT-BUTOXYCARBONYLAMINO-3-(2-HYDROXY-PHENYL)-PROPIONIC ACID119660-45-6
(R)-3-TERT-BUTOXYCARBONYLAMINO-PENTANOIC ACID(R)-3-TERT-BUTOXYCARBONYLAMINO-PENTANOIC ACID
(R)-2-(TERT-BUTOXYCARBONYLAMINO-METHYL)-3-(1H-INDOL-3-YL)-PROPIONIC ACID(R)-2-(TERT-BUTOXYCARBONYLAMINO-METHYL)-3-(1H-INDOL-3-YL)-PROPIONIC ACID
(R)-3-TERT-BUTOXYCARBONYLAMINO-3-(2,5-DIFLUORO-PHENYL)-PROPIONIC ACID(R)-3-TERT-BUTOXYCARBONYLAMINO-3-(2,5-DIFLUORO-PHENYL)-PROPIONIC ACID
(R)-2-TERT-BUTOXYCARBONYLAMINO-4-(3,4-DIMETHOXY-PHENYL)-BUTYRIC ACID(R)-2-TERT-BUTOXYCARBONYLAMINO-4-(3,4-DIMETHOXY-PHENYL)-BUTYRIC ACID
(R)-TERT-BUTYL-2-((BENZYLOXYCARBONYLAMINO)METHYL)PIPERIDINE-1-CARBOXYLATE(R)-TERT-BUTYL-2-((BENZYLOXYCARBONYLAMINO)METHYL)PIPERIDINE-1-CARBOXYLATE
(R)-1-tert-butyl 2-methyl 4-oxopiperidine-1,2-dicarboxylate(R)-1-tert-butyl 2-methyl 4-oxopiperidine-1,2-dicarboxylate
(R)-TERT-BUTOXYCARBONYLAMINO-(3-METHOXY-PHENYL)-ACETIC ACID(R)-TERT-BUTOXYCARBONYLAMINO-(3-METHOXY-PHENYL)-ACETIC ACID
(R)-TERT-BUTYL 3-((2-IODOPYRIDIN-3-YLOXY)METHYL)-2,3-DIHYDROPYRROLE-1-CARBOXYLATE(R)-TERT-BUTYL 3-((2-IODOPYRIDIN-3-YLOXY)METHYL)-2,3-DIHYDROPYRROLE-1-CARBOXYLATE
(R)-1-TERT-BUTOXYCARBONYL-2,5-DIHYDROPYRROLE-2-CARBOXYLIC ACID(R)-1-TERT-BUTOXYCARBONYL-2,5-DIHYDROPYRROLE-2-CARBOXYLIC ACID
(2R)-[(tert-butoxycarbonyl)amino][2-(trifluoromethyl)phenyl]ethanoic acid(2R)-[(tert-butoxycarbonyl)amino][2-(trifluoromethyl)phenyl]ethanoic acid
(R)-TERT-BUTOXYCARBONYLAMINO-(3-HYDROXY-PHENYL)-ACETIC ACID(R)-TERT-BUTOXYCARBONYLAMINO-(3-HYDROXY-PHENYL)-ACETIC ACID
(R)-TERT-BUTOXYCARBONYLAMINO-(4-METHOXY-PHENYL)-ACETIC ACID(R)-TERT-BUTOXYCARBONYLAMINO-(4-METHOXY-PHENYL)-ACETIC ACID
(2R)-2-[(tert-butoxycarbonyl)amino]-3-(2-nitrophenyl)propanoic acid(2R)-2-[(tert-butoxycarbonyl)amino]-3-(2-nitrophenyl)propanoic acid
(R)-2-TERT-BUTOXYCARBONYLAMINO-4-(2,6-DICHLORO-PHENYL)-BUTYRIC ACID(R)-2-TERT-BUTOXYCARBONYLAMINO-4-(2,6-DICHLORO-PHENYL)-BUTYRIC ACID1260589-52-3
(R)-4-Boc-Piperazine-2-carboxyl-tert-butylamide(R)-4-Boc-Piperazine-2-carboxyl-tert-butylamide171866-36-7
(2R)-2-[(tert-butoxycarbonyl)amino]-3-(2-methylphenyl)propanoic acid(2R)-2-[(tert-butoxycarbonyl)amino]-3-(2-methylphenyl)propanoic acid
(2R)-2-[(tert-butoxycarbonyl)amino]-3-(4-cyanophenyl)propanoic acid(2R)-2-[(tert-butoxycarbonyl)amino]-3-(4-cyanophenyl)propanoic acid
(2R)-2-[(tert-butoxycarbonyl)amino]-3-(4-nitrophenyl)propanoic acid(2R)-2-[(tert-butoxycarbonyl)amino]-3-(4-nitrophenyl)propanoic acid
(R)-2-TERT-BUTOXYCARBONYLAMINO-3-(2,4,6-TRIMETHYL-PHENYL)-PROPIONIC ACID(R)-2-TERT-BUTOXYCARBONYLAMINO-3-(2,4,6-TRIMETHYL-PHENYL)-PROPIONIC ACID
Copyright 2019 © ChemicalBook. All rights reserved