Chembase list of 866358 unique molecular structures

$$$$ Data

M. F.

C9H11BO4

Suppliers	Catalog Number
Sigma Aldrich	652342

Database	Data ID
PubChem	16217923

M. W.

193.99224

CAS

1072952-04-5

Similarity

N/A

ID: 139852

5-methyl-2,3-dihydro-1H-inden-1-one

$$$$ Data

M. F.

C10H10O

Suppliers	Catalog Number
Sigma Aldrich	656801
Enamine	EN300-51353

Database	Data ID
PubChem	10130031

M. W.

146.1858

CAS

4593-38-8

Similarity

N/A

ID: 139853

3-(methanesulfonyloxy)-2,2-dimethylpropyl methanesulfonate

$$$$ Data

M. F.

C7H16O6S2

Suppliers	Catalog Number
Sigma Aldrich	662267

Database	Data ID
PubChem	299203

M. W.

260.32834

CAS

53555-41-2

Similarity

N/A

ID: 139854

1-(tert-butyldimethylsilyl)-1H-imidazole

$$$$ Data

M. F.

C9H18N2Si

Suppliers	Catalog Number
Sigma Aldrich	250236 19920
Alfa Aesar	41462
A&J Pharmtech	AJA-O10864

Database	Data ID
PubChem	171385

M. W.

182.33812

CAS

54925-64-3

Similarity

N/A

ID: 139855

(2S)-1,1,3-triphenylpropan-2-amine

$$$$ Data

M. F.

C21H21N

Suppliers	Catalog Number
Sigma Aldrich	554529

Database	Data ID
PubChem	9925949

M. W.

287.39814

CAS

233772-38-8

Similarity

N/A

ID: 139856

quinoline-3-carbonitrile

$$$$ Data

M. F.

C10H6N2

Suppliers	Catalog Number
Sigma Aldrich	177156
Enamine	EN300-51131

Database	Data ID
PubChem	93177

M. W.

154.16804

CAS

34846-64-5

Similarity

N/A

ID: 139857

2-methyl-6-nitrobenzonitrile

$$$$ Data

M. F.

C8H6N2O2

Suppliers	Catalog Number
Sigma Aldrich	188719
ChemBridge	4034701

Database	Data ID
PubChem	74669

M. W.

162.14544

CAS

1885-76-3

Similarity

N/A

ID: 139858

1-(2-acetylphenyl)ethan-1-one

$$$$ Data

M. F.

C10H10O2

Suppliers	Catalog Number
Sigma Aldrich	242039 31535

Database	Data ID
PubChem	35459

M. W.

162.1852

CAS

704-00-7

Similarity

N/A

ID: 139859

2,6-dimethylnaphthalene

$$$$ Data

M. F.

C12H12

Suppliers	Catalog Number
Sigma Aldrich	126535 112410 40835
A&J Pharmtech	AJA-O10559

Database	Data ID
PubChem	11387

M. W.

156.22368

CAS

28804-88-8

Similarity

N/A

ID: 139860

(4R)-4-benzyl-5,5-diphenyl-1,3-oxazolidin-2-one

$$$$ Data

M. F.

C22H19NO2

Suppliers	Catalog Number
Sigma Aldrich	554499
A&J Pharmtech	AJA-O2711

Database	Data ID
PubChem	16217133

M. W.

329.39176

CAS

191090-40-1

Similarity

N/A

ID: 139861

benzyl N-({[(benzyloxy)carbonyl]amino}(methylsulfanyl)methylidene)carbamate

$$$$ Data

M. F.

C18H18N2O4S

Suppliers	Catalog Number
Sigma Aldrich	458783

Database	Data ID
PubChem	9681701

M. W.

358.41152

CAS

25508-20-7

Similarity

N/A

ID: 139862

bis(propan-2-yloxy)barium

$$$$ Data

M. F.

C6H14BaO2

Suppliers	Catalog Number
Sigma Aldrich	449679 339148

Database	Data ID
PubChem	4456486

M. W.

255.50116

CAS

24363-37-9

Similarity

N/A

ID: 139863

(2S,5S)-5-benzyl-2-tert-butyl-3-methylimidazolidin-4-one

$$$$ Data

M. F.

C15H22N2O

Suppliers	Catalog Number
Sigma Aldrich	663107
A&J Pharmtech	AJA-O11665

Database	Data ID
PubChem	10309834

M. W.

246.34798

CAS

346440-54-8

Similarity

N/A

ID: 139864

5-ethyl-5-(4-hydroxyphenyl)-3-methylimidazolidine-2,4-dione

$$$$ Data

M. F.

C12H14N2O3

Suppliers	Catalog Number
Sigma Aldrich	UC126 H146
TRC	H944875

Database	Data ID
PubChem	119507

M. W.

234.25116

CAS

61837-65-8

Similarity

N/A

ID: 139865

benzeneseleninyl benzeneseleninate

$$$$ Data

M. F.

C12H10O3Se2

Suppliers	Catalog Number
Sigma Aldrich	213012 12590
Alfa Aesar	L00795

Database	Data ID
PubChem	87253

M. W.

360.126

CAS

17697-12-0

Similarity

N/A

ID: 139866

3,3-dimethylpentane

$$$$ Data

M. F.

C7H16

Suppliers	Catalog Number
Sigma Aldrich	118451
Alfa Aesar	43706

Database	Data ID
PubChem	11229

M. W.

100.20194

CAS

562-49-2

Similarity

N/A

ID: 139867

bis(2,3-dihydroxypropanal)

$$$$ Data

M. F.

C6H12O6

Suppliers	Catalog Number
Sigma Aldrich	49810 G4802

Database	Data ID
PubChem	533979

M. W.

180.15588

CAS

23147-59-3

Similarity

N/A

ID: 139868

3-methyl-2-[(2Z)-pent-2-en-1-yl]cyclopent-2-en-1-one

$$$$ Data

M. F.

C11H16O

Suppliers	Catalog Number
Sigma Aldrich	W319600
Alfa Aesar	A19060
InterBioScreen	Bio-0270

Database	Data ID
PubChem	1549018

M. W.

164.24414

CAS

488-10-8

Similarity

N/A

ID: 139869

4-bromo-3,5-dimethylphenyl N-methylcarbamate

$$$$ Data

M. F.

C10H12BrNO2

Suppliers	Catalog Number
Sigma Aldrich	346942 PS450

Database	Data ID
PubChem	688148

M. W.

258.11178

CAS

672-99-1

Similarity

N/A

ID: 139870

2-amino(²H₄)propanoic acid

$$$$ Data

M. F.

C3H7NO2

Suppliers	Catalog Number
Sigma Aldrich	488917

Database	Data ID
PubChem	16213419

M. W.

89.09318

CAS

53795-92-9

Similarity

N/A

ID: 139871

2-[4-(trifluoromethoxy)phenyl]ethan-1-ol

$$$$ Data

M. F.

C9H9F3O2

Suppliers	Catalog Number
Sigma Aldrich	663751

Database	Data ID
PubChem	10750766

M. W.

206.1617696

CAS

196811-90-2

Similarity

N/A

ID: 139872

prop-1-ene; {1,3-bis[2,6-bis(propan-2-yl)phenyl]-2,3-dihydro-1H-imidazol-2-ylide...

$$$$

M. F.

C30H42ClN2Pd

Suppliers	Catalog Number
Sigma Aldrich	660361

Database

Data ID

M. W.

572.54088

CAS

478980-03-9

Similarity

N/A

ID: 139873

2-[(1E)-hept-1-en-1-yl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

$$$$ Data

M. F.

C13H25BO2

Suppliers	Catalog Number
Sigma Aldrich	662992
Alfa Aesar	H27876
A&J Pharmtech	AJA-O32496

Database	Data ID
PubChem	15181925

M. W.

224.1474

CAS

169339-75-7

Similarity

N/A

ID: 139874

methyl 5-bromo-2-acetamidobenzoate

$$$$ Data

M. F.

C10H10BrNO3

Suppliers	Catalog Number
Sigma Aldrich	528803
Alfa Aesar	A17087
Bide Pharmatech	BD18221

Database	Data ID
PubChem	736223

M. W.

272.0953

CAS

138825-96-4

Similarity

N/A

ID: 139875

3-aminonaphthalene-2-carboxylic acid

$$$$ Data More

M. F.

C11H9NO2

Suppliers	Catalog Number
Sigma Aldrich	A66804 08660
Alfa Aesar	B23927 L19312
Enamine	EN300-17260

Database	Data ID
PubChem	22244

M. W.

187.19466

CAS

5959-52-4

Similarity

N/A

ID: 139876

2-amino-7-chloro-5-oxo-5H-chromeno[2,3-b]pyridine-3-carbonitrile

$$$$ Data

M. F.

C13H6ClN3O2

Suppliers	Catalog Number
Sigma Aldrich	402311

Database	Data ID
PubChem	735927

M. W.

271.65864

CAS

68302-10-3

Similarity

N/A

ID: 139877

tert-butyl N-(2-oxooxolan-3-yl)carbamate

$$$$ Data

M. F.

C9H15NO4

Suppliers	Catalog Number
Sigma Aldrich	467049

Database	Data ID
PubChem	3297380

M. W.

201.2197

CAS

132957-40-5

Similarity

N/A

ID: 139878

1-isocyanato-4-phenoxybenzene

$$$$ Data

M. F.

C13H9NO2

Suppliers	Catalog Number
Sigma Aldrich	478970
Alfa Aesar	L11686

Database	Data ID
PubChem	2734896

M. W.

211.21606

CAS

59377-19-4

Similarity

N/A

ID: 139879

1,3-diethyl 2,2-dimethylpropanedioate

$$$$ Data

M. F.

C9H16O4

Suppliers	Catalog Number
Sigma Aldrich	143901
Enamine	EN300-99075

Database	Data ID
PubChem	15382

M. W.

188.22094

CAS

1619-62-1

Similarity

N/A

ID: 139880

ethyl 4-chloro-2-[4-(fluorosulfonyl)phenyl]quinoline-6-carboxylate

$$$$ Data

M. F.

C18H13ClFNO4S

Suppliers	Catalog Number
Sigma Aldrich	142646

Database	Data ID
PubChem	97450

M. W.

393.8165232

CAS

64415-12-9

Similarity

N/A

ID: 139881

nonanoyl chloride

$$$$ Data

M. F.

C9H17ClO

Suppliers	Catalog Number
Sigma Aldrich	156833 76360
Alfa Aesar	A17671

Database	Data ID
PubChem	69819

M. W.

176.68368

CAS

764-85-2

Similarity

N/A

ID: 139882

2-bromo-N-decylacetamide

$$$$ Data

M. F.

C12H24BrNO

Suppliers	Catalog Number
Sigma Aldrich	672726

Database	Data ID
PubChem	94759

M. W.

278.22906

CAS

5345-68-6

Similarity

N/A

ID: 139883

2-aminocyclopent-3-ene-1-carboxylic acid hydrochloride

$$$$ Data

M. F.

C6H10ClNO2

Suppliers	Catalog Number
Sigma Aldrich	68602

Database	Data ID
PubChem	66810255

M. W.

163.6021

CAS

122022-92-8

Similarity

N/A

ID: 139884

2-(2-chloro-6-fluorophenyl)ethan-1-amine hydrochloride

$$$$ Data

M. F.

C8H10Cl2FN

Suppliers	Catalog Number
Sigma Aldrich	661678
Enamine	EN300-108036

Database	Data ID
PubChem	16218117

M. W.

210.0761032

CAS

870717-94-5

Similarity

N/A

ID: 139885

N-(4-bromophenyl)-4-{4-[(4-bromophenyl)(phenyl)amino]phenyl}-N-phenylaniline

$$$$ Data

M. F.

C36H26Br2N2

Suppliers	Catalog Number
Sigma Aldrich	656674

Database	Data ID
PubChem	16217991

M. W.

646.41304

CAS

344782-48-5

Similarity

N/A

ID: 139886

bis(2-methylprop-2-en-1-ide); bis(chloropalladiumylium)

$$$$ Data

M. F.

C8H14Cl2Pd2

Suppliers	Catalog Number
Sigma Aldrich	673064

Database	Data ID
PubChem	71310360

M. W.

393.94276

CAS

12081-18-4

Similarity

N/A

ID: 139887

benzyl (2R)-2-(hydroxymethyl)pyrrolidine-1-carboxylate

$$$$ Data

M. F.

C13H17NO3

Suppliers	Catalog Number
Sigma Aldrich	673102

Database	Data ID
PubChem	5314177

M. W.

235.27898

CAS

72597-18-3

Similarity

N/A

ID: 139888

6-amino-1,3-dipropyl-1,2,3,4-tetrahydropyrimidine-2,4-dione

$$$$ Data

M. F.

C10H17N3O2

Suppliers	Catalog Number
Sigma Aldrich	665444
TRC	A608070

Database	Data ID
PubChem	855055

M. W.

211.26088

CAS

41862-14-0

Similarity

N/A

ID: 139889

{2-[3-(trifluoromethyl)phenoxymethyl]phenyl}boronic acid

$$$$ Data

M. F.

C14H12BF3O3

Suppliers	Catalog Number
Sigma Aldrich	666866

Database	Data ID
PubChem	16218179

M. W.

296.0494896

CAS

1072951-60-0

Similarity

N/A

ID: 139890

2-chloro-6-methoxypyridin-3-amine

$$$$ Data More

M. F.

C6H7ClN2O

Suppliers	Catalog Number
Sigma Aldrich	681679
Enamine	EN300-99868
Bide Pharmatech	BD73402

Database	Data ID
PubChem	118674

M. W.

158.58558

CAS

135795-46-9

Similarity

N/A

ID: 139891

methyl 3,5-dichloropyridine-4-carboxylate

$$$$ Data

M. F.

C7H5Cl2NO2

Suppliers	Catalog Number
Sigma Aldrich	679577

Database	Data ID
PubChem	16218341

M. W.

206.0261

CAS

773874-72-9

Similarity

N/A

ID: 139892

3-(1-benzothiophen-2-yl)propanoic acid

$$$$ Data

M. F.

C11H10O2S

Suppliers	Catalog Number
Sigma Aldrich	679569

Database	Data ID
PubChem	12713652

M. W.

206.2609

CAS

42768-60-5

Similarity

N/A

ID: 139893

11-phosphonoundecanoic acid

$$$$ Data

M. F.

C11H23O5P

Suppliers	Catalog Number
Sigma Aldrich	678031

Database	Data ID
PubChem	16218330

M. W.

266.271081

CAS

4494-24-0

Similarity

N/A

ID: 139894

2-(4-chlorobenzoyl)-6-nitro-1-benzofuran-3-amine

$$$$ Data

M. F.

C15H9ClN2O4

Suppliers	Catalog Number
Sigma Aldrich	550159

Database	Data ID
PubChem	4499001

M. W.

316.69596

CAS

351003-28-6

Similarity

N/A

ID: 139895

6-hydroxy-9H-purin-1-ium-1-olate

$$$$ Data

M. F.

C5H4N4O2

Suppliers	Catalog Number
Sigma Aldrich	557889

Database	Data ID
PubChem	78847

M. W.

152.11086

CAS

5167-14-6

Similarity

N/A

ID: 139896

4-methyl-N'-(1-phenylethylidene)benzene-1-sulfonohydrazide

$$$$ Data

M. F.

C15H16N2O2S

Suppliers	Catalog Number
Sigma Aldrich	558087
Alfa Aesar	H53474

Database	Data ID
PubChem	5391368

M. W.

288.36474

CAS

4545-21-5

Similarity

N/A

ID: 139897

(4-chloro-3-nitrophenyl)(4-chlorophenyl)methanone

$$$$ Data

M. F.

C13H7Cl2NO3

Suppliers	Catalog Number
Sigma Aldrich	534196

Database	Data ID
PubChem	689089

M. W.

296.10558

CAS

31431-17-1

Similarity

N/A

ID: 139898

4-ethoxy-1-isocyanato-2-nitrobenzene

$$$$ Data

M. F.

C9H8N2O4

Suppliers	Catalog Number
Sigma Aldrich	557021

Database	Data ID
PubChem	3649547

M. W.

208.17082

CAS

108128-49-0

Similarity

N/A

ID: 139899

2,2-dibenzylpropane-1,3-diol

$$$$ Data

M. F.

C17H20O2

Suppliers	Catalog Number
Sigma Aldrich	672289

Database	Data ID
PubChem	11076067

M. W.

256.3395

CAS

31952-16-6

Similarity

N/A

ID: 139900

1-oxa-4-azaspiro[4.5]decane

$$$$ Data

M. F.

C8H15NO

Suppliers	Catalog Number
Sigma Aldrich	555800

Database	Data ID
PubChem	278559

M. W.

141.2108

CAS

177-04-8

Similarity

N/A

Part I: Carbon
- I.1: Carbon-Carbon Bonds
- I.1.1 Alkanes
- Primary carbon
- Secondary carbon
- Tertiary carbon
- Quaternary carbon
- I.1.2 C-C double and Triple Bonds
- Alkene
- Alkyne
- Allene
- I.2: One Carbon-Hetero Bond
- I.2.1 Alkyl Halogenides
- Alkylchloride
- Alkylfluoride
- Alkylbromide
- Alkyliodide
- I.2.2 Alcohols and Ethers
- Alcohol
- Primary alcohol
- Secondary alcohol
- Tertiary alcohol
- Dialkylether
- Dialkylthioether
- Alkylarylether
- Diarylether
- Alkylarylthioether
- Diarylthioether
- Oxonium
- I.2.3 Amines
- Amine
- Primary aliphatic amine
- Secondary aliphatic amine
- Tertiary aliphatic amine
- Quaternary aliphatic ammonium
- Primary aromatic amine
- Secondary aromatic amine
- Tertiary aromatic amine
- Quaternary aromatic ammonium
- Secondary mixed amine
- Tertiary mixed amine
- Quaternary mixed ammonium
- Ammonium
- I.2.4 Others
- Alkylthiol
- Dialkylthioether
- Alkylarylthioether
- Disulfide
- 1,2-Aminoalcohol
- 1,2-Diol
- 1,1-Diol
- Hydroperoxide
- Peroxo
- Organolithium compounds
- Organomagnesium compounds
- Organometallic compounds
- I.3: Two Carbon-Hetero Bonds (Carbonyl and Derivatives)
- I.3.1 Double Bond to Hetero
- Aldehyde
- Ketone
- Thioaldehyde
- Thioketone
- Imine
- Immonium
- Oxime
- Oximether
- I.3.2. Two Single Bonds to Hetero
- Acetal
- Hemiacetal
- Aminal
- Hemiaminal
- Thioacetal
- Thiohemiacetal
- Halogen acetal like
- Acetal like
- Halogenmethylen ester and similar
- NOS methylen ester and similar
- Hetero methylen ester and similar
- Cyanhydrine
- I.3.3 Single Bond to Hetero, C=C Double Bond (Enols and Similar)
- Chloroalkene
- Fluoroalkene
- Bromoalkene
- Iodoalkene
- Enol
- Endiol
- Enolether
- Enolester
- Enamine
- Thioenol
- Thioenolether
- I.4: Three Carbon-Hetero Bonds (Carboxyl and Derivatives)
- Acylchloride
- Acylfluoride
- Acylbromide
- Acyliodide
- Acylhalide
- Carboxylic acid
- Carboxylic ester
- Lactone
- Carboxylic anhydride
- Carboxylic acid derivative
- Carbothioic acid
- Carbothioic S ester
- Carbothioic S lactone
- Carbothioic O ester
- Carbothioic O lactone
- Carbothioic halide
- Carbodithioic acid
- Carbodithioic ester
- Carbodithiolactone
- Amide
- Primary amide
- Secondary amide
- Tertiary amide
- Lactam
- Alkyl imide
- N hetero imide
- Imide acidic
- Thioamide
- Thiolactam
- Oximester
- Amidine
- Hydroxamic acid
- Hydroxamic acid ester
- Imidoacid
- Imidoacid cyclic
- Imidoester
- Imidolactone
- Imidothioacid
- Imidothioacid cyclic
- Imidothioester
- Imidothiolactone
- Amidine
- Imidolactam
- Imidoylhalide
- Imidoylhalide cyclic
- Amidrazone
- Alpha aminoacid
- Alpha hydroxyacid
- Peptide middle
- Peptide C term
- Peptide N term
- Carboxylic orthoester
- Ketene
- Ketenacetal
- Nitrile
- Isonitrile
- Vinylogous carbonyl or carboxyl derivative
- Vinylogous acid
- Vinylogous ester
- Vinylogous amide
- Vinylogous halide
- I.5: Four Carbon-Hetero Bonds (Carbonic Acid and Derivatives)
- Carbonic acid dieester
- Carbonic acid esterhalide
- Carbonic acid monoester
- Carbonic acid derivatives
- Thiocarbonic acid dieester
- Thiocarbonic acid esterhalide
- Thiocarbonic acid monoester
- Urea
- Thiourea
- Isourea
- Isothiourea
- Guanidine
- Carbaminic acid
- Urethan(Carbamate ester)
- Biuret
- Semicarbazide
- Carbazide
- Semicarbazone
- Carbazone
- Thiosemicarbazide
- Thiocarbazide
- Thiosemicarbazone
- Thiocarbazone
- Isocyanate
- Cyanate
- Isothiocyanate
- Thiocyanate
- Carbodiimide
- Orthocarbonic derivatives
- I.6 Aromatics
- Phenol
- 1,2-Diphenol
- Arylchloride
- Arylfluoride
- Arylbromide
- Aryliodide
- Arylthiol
- Iminoarene
- Oxoarene
- Thioarene
- Hetero N basic H
- Hetero N basic no H
- Hetero N nonbasic
- Hetero O
- Hetero S
- Heteroaromatic
Part II: N, S, P, Si, B
- II.1 Nitrogen
- Nitrite
- Thionitrite
- Nitrate
- Nitro
- Nitroso
- Azide
- Acylazide
- Diazo
- Diazonium
- Nitrosamine
- Nitrosamide
- N-Oxide
- Hydrazine
- Hydrazone
- Hydroxylamine
- II.2 Sulfur
- Sulfon
- Sulfoxide
- Sulfonium
- Sulfuric acid
- Sulfuric monoester
- Sulfuric diester
- Sulfuric monoamide
- Sulfuric diamide
- Sulfuric esteramide
- Sulfuric derivative
- Sulfonic acid
- Sulfonamide
- Sulfonic ester
- Sulfonic halide
- Sulfonic derivative
- Sulfinic acid
- Sulfinic amide
- Sulfinic ester
- Sulfinic halide
- Sulfinic derivative
- Sulfenic acid
- Sulfenic amide
- Sulfenic ester
- Sulfenic halide
- Sulfenic derivative
- II.3 Phosphorous
- Phosphine
- Phosphine oxide
- Phosphonium
- Phosphorylen
- Phosphonic acid
- Phosphonic monoester
- Phosphonic diester
- Phosphonic monoamide
- Phosphonic diamide
- Phosphonic esteramide
- Phosphonic acid derivative
- Phosphoric acid
- Phosphoric monoester
- Phosphoric diester
- Phosphoric triester
- Phosphoric monoamide
- Phosphoric diamide
- Phosphoric triamide
- Phosphoric monoestermonoamide
- Phosphoric diestermonoamide
- Phosphoric monoesterdiamide
- Phosphoric acid derivative
- Phosphinic acid
- Phosphinic ester
- Phosphinic amide
- Phosphinic acid derivative
- Phosphonous acid
- Phosphonous monoester
- Phosphonous diester
- Phosphonous monoamide
- Phosphonous diamide
- Phosphonous esteramide
- Phosphonous derivatives
- Phosphinous acid
- Phosphinous ester
- Phosphinous amide
- Phosphinous derivatives
- II.4 Silicon
- Quart silane
- Non-quart silane
- Silylmonohalide
- Het trialkylsilane
- Dihet dialkylsilane
- Trihet alkylsilane
- Silicic acid derivative
- II.5 Boron
- Trialkylborane
- Boric acid derivatives
- Boronic acid derivative
- Borohydride
- Quaternary boron
Part III: Some Special Patterns
- III.1 Chains
- III.2 Rings
- Aromatic
- Heterocyclic
- Epoxide
- NH aziridine
- Spiro
- Annelated rings
- Bridged rings
- III.3 Sugars and Nucleosides/Nucleotides, Steroids
- Sugar pattern 1
- Sugar pattern 2
- Sugar pattern combi
- Sugar pattern 2 reducing
- Sugar pattern 2 alpha
- Sugar pattern 2 beta
- III.4 Everything else...
- Conjugated double bond
- Conjugated tripple bond
- Cis double bond
- Trans double bond
- Mixed anhydrides
- Halogen on hetero
- Halogen multi subst
- Trifluoromethyl
- C ONS bond
- Charged
- Anion
- Kation
- Salt
- 1,3-Tautomerizable
- 1,5-Tautomerizable
- Rotatable bond
- Michael acceptor
- Dicarbodiazene
- CH-acidic
- CH-acidic strong
- Chiral center specified