Oxazoler
Filtrerade sökresultat
5-brom-4-metyl-2-fenyl-1,3-oxazol, 95 %, Thermo Scientific™
CAS: 21354-98-3 Molekylformel: C10H8BrNO Molekylvikt (g/mol): 238.08 MDL-nummer: MFCD11109319 InChI-nyckel: QHQQHNFHCQSTBJ-UHFFFAOYSA-N Synonym: 5-bromo-4-methyl-2-phenyloxazole,4-methyl-2-phenyl-5-bromooxazole,oxazole,5-bromo-4-methyl-2-phenyl,5-bromo-4-methyl-1,3-oxazol-2-yl benzene PubChem CID: 15328586 IUPAC-namn: 5-brom-4-metyl-2-fenyl-l,3-oxazol LEDER: CC1=C(Br)OC(=N1)C1=CC=CC=C1
| Molekylformel | C10H8BrNO |
|---|---|
| PubChem CID | 15328586 |
| MDL-nummer | MFCD11109319 |
| IUPAC-namn | 5-brom-4-metyl-2-fenyl-l,3-oxazol |
| CAS | 21354-98-3 |
| InChI-nyckel | QHQQHNFHCQSTBJ-UHFFFAOYSA-N |
| LEDER | CC1=C(Br)OC(=N1)C1=CC=CC=C1 |
| Molekylvikt (g/mol) | 238.08 |
| Synonym | 5-bromo-4-methyl-2-phenyloxazole,4-methyl-2-phenyl-5-bromooxazole,oxazole,5-bromo-4-methyl-2-phenyl,5-bromo-4-methyl-1,3-oxazol-2-yl benzene |
5-(4-metoxifenyl)-1,3-oxazol-4-karboxylsyra, 97 %, Thermo Scientific™
CAS: 89205-07-2 Molekylformel: C11H9NO4 Molekylvikt (g/mol): 219.196 MDL-nummer: MFCD03644147 InChI-nyckel: XVXCIDWYZMBWJU-UHFFFAOYSA-N Synonym: 5-4-methoxyphenyl-1,3-oxazole-4-carboxylic acid,5-4-methoxyphenyl oxazole-4-carboxylic acid,5-4-methoxyphenyl-1,3-oxazole-4-carboxylicacid,4-oxazolecarboxylicacid, 5-4-methoxyphenyl,5-4-methoxy-phenyl-oxazole-4-carboxylic acid,maybridge3_004367,acmc-20c54g,5-4-methoxyphenyl-4-oxazolecarboxylic acid,5-4-methoxyphenyl-oxazole-4-carboxylic acid,4-oxazolecarboxylic acid, 5-4-methoxyphenyl PubChem CID: 2779782 IUPAC-namn: 5-(4-metoxifenyl)-1,3-oxazol-4-karboxylsyra LEDER: COC1=CC=C(C=C1)C2=C(N=CO2)C(=O)O
| Molekylformel | C11H9NO4 |
|---|---|
| PubChem CID | 2779782 |
| MDL-nummer | MFCD03644147 |
| IUPAC-namn | 5-(4-metoxifenyl)-1,3-oxazol-4-karboxylsyra |
| CAS | 89205-07-2 |
| InChI-nyckel | XVXCIDWYZMBWJU-UHFFFAOYSA-N |
| LEDER | COC1=CC=C(C=C1)C2=C(N=CO2)C(=O)O |
| Molekylvikt (g/mol) | 219.196 |
| Synonym | 5-4-methoxyphenyl-1,3-oxazole-4-carboxylic acid,5-4-methoxyphenyl oxazole-4-carboxylic acid,5-4-methoxyphenyl-1,3-oxazole-4-carboxylicacid,4-oxazolecarboxylicacid, 5-4-methoxyphenyl,5-4-methoxy-phenyl-oxazole-4-carboxylic acid,maybridge3_004367,acmc-20c54g,5-4-methoxyphenyl-4-oxazolecarboxylic acid,5-4-methoxyphenyl-oxazole-4-carboxylic acid,4-oxazolecarboxylic acid, 5-4-methoxyphenyl |
2-(5-Metyl-2-fenyl-1,3-oxazol-4-yl)ättiksyra, 97 %, Thermo Scientific™
CAS: 107367-98-6 Molekylformel: C12H11NO3 Molekylvikt (g/mol): 217.224 MDL-nummer: MFCD00100005 InChI-nyckel: XEWJNPORMBGGKZ-UHFFFAOYSA-N Synonym: 2-5-methyl-2-phenyl-1,3-oxazol-4-yl acetic acid,5-methyl-2-phenyl-1,3-oxazol-4-yl acetic acid,2-5-methyl-2-phenyloxazol-4-yl acetic acid,5-methyl-2-phenyloxazol-4-yl acetic acid,maybridge1_002118,acmc-2098vv,2-phenyl-5-methyl-4-oxazolyiacetic acid,2-phenyl-5-methyl-4-oxazolylacetic acid,2-phenyl-5-methyloxazol-4-ylacetic acid,5-methyl-2-phenyl-1,3-oxazolyl acetic acid PubChem CID: 2775139 IUPAC-namn: 2-(5-metyl-2-fenyl-1,3-oxazol-4-yl)ättiksyra LEDER: CC1=C(N=C(O1)C2=CC=CC=C2)CC(=O)O
| Molekylformel | C12H11NO3 |
|---|---|
| PubChem CID | 2775139 |
| MDL-nummer | MFCD00100005 |
| IUPAC-namn | 2-(5-metyl-2-fenyl-1,3-oxazol-4-yl)ättiksyra |
| CAS | 107367-98-6 |
| InChI-nyckel | XEWJNPORMBGGKZ-UHFFFAOYSA-N |
| LEDER | CC1=C(N=C(O1)C2=CC=CC=C2)CC(=O)O |
| Molekylvikt (g/mol) | 217.224 |
| Synonym | 2-5-methyl-2-phenyl-1,3-oxazol-4-yl acetic acid,5-methyl-2-phenyl-1,3-oxazol-4-yl acetic acid,2-5-methyl-2-phenyloxazol-4-yl acetic acid,5-methyl-2-phenyloxazol-4-yl acetic acid,maybridge1_002118,acmc-2098vv,2-phenyl-5-methyl-4-oxazolyiacetic acid,2-phenyl-5-methyl-4-oxazolylacetic acid,2-phenyl-5-methyloxazol-4-ylacetic acid,5-methyl-2-phenyl-1,3-oxazolyl acetic acid |
2-(5-Metyl-2-fenyl-1,3-oxazol-4-yl)etan-1-ol, 97 %, Thermo Scientific™
CAS: 103788-65-4 Molekylformel: C12H13NO2 Molekylvikt (g/mol): 203.241 MDL-nummer: MFCD00100006 InChI-nyckel: JYWHQBLLIBQGCU-UHFFFAOYSA-N PubChem CID: 725585 IUPAC-namn: 2-(5-metyl-2-fenyl-l,3-oxazol-4-yl)etanol LEDER: CC1=C(N=C(O1)C2=CC=CC=C2)CCO
| Molekylformel | C12H13NO2 |
|---|---|
| PubChem CID | 725585 |
| MDL-nummer | MFCD00100006 |
| IUPAC-namn | 2-(5-metyl-2-fenyl-l,3-oxazol-4-yl)etanol |
| CAS | 103788-65-4 |
| InChI-nyckel | JYWHQBLLIBQGCU-UHFFFAOYSA-N |
| LEDER | CC1=C(N=C(O1)C2=CC=CC=C2)CCO |
| Molekylvikt (g/mol) | 203.241 |
3-(1,3-Oxazol-5-yl)bensoesyra,≥ 97 %, Thermo Scientific™
CAS: 252928-82-8 Molekylformel: C10H7NO3 Molekylvikt (g/mol): 189.17 MDL-nummer: MFCD06797481 InChI-nyckel: GDGXRJDVOKNSCX-UHFFFAOYSA-N Synonym: 3-1,3-oxazol-5-yl benzoic acid,3-oxazol-5-yl benzoic acid,3-5-oxazolyl benzoic acid,benzoic acid, 3-5-oxazolyl,3-5-oxazolyl benzoicacid,benzoicacid, 3-5-oxazolyl PubChem CID: 7127813 IUPAC-namn: 3-(1,3-oxazol-5-yl)bensoesyra LEDER: C1=CC(=CC(=C1)C(=O)O)C2=CN=CO2
| Molekylformel | C10H7NO3 |
|---|---|
| PubChem CID | 7127813 |
| MDL-nummer | MFCD06797481 |
| IUPAC-namn | 3-(1,3-oxazol-5-yl)bensoesyra |
| CAS | 252928-82-8 |
| InChI-nyckel | GDGXRJDVOKNSCX-UHFFFAOYSA-N |
| LEDER | C1=CC(=CC(=C1)C(=O)O)C2=CN=CO2 |
| Molekylvikt (g/mol) | 189.17 |
| Synonym | 3-1,3-oxazol-5-yl benzoic acid,3-oxazol-5-yl benzoic acid,3-5-oxazolyl benzoic acid,benzoic acid, 3-5-oxazolyl,3-5-oxazolyl benzoicacid,benzoicacid, 3-5-oxazolyl |
2,5-dimetyl-1,3-oxazol-4-karboxylsyra, 97 %, Thermo Scientific™
CAS: 23000-14-8 Molekylformel: C6H7NO3 Molekylvikt (g/mol): 141.126 MDL-nummer: MFCD03011595 InChI-nyckel: LHGRUGVXZLHYKE-UHFFFAOYSA-N Synonym: 2,5-dimethyloxazole-4-carboxylic acid,dimethyl-1,3-oxazole-4-carboxylic acid,4-oxazolecarboxylic acid, 2,5-dimethyl,2,5-dimethyl-1,3-oxazole-4-carboxylicacid,4-carboxy-2,5-dimethyl-1,3-oxazole,2,5-dimethyl-oxazole-4-carboxylic acid,2.5-dimethyl-1,3-oxazole-4-carboxylic acid PubChem CID: 2795465 IUPAC-namn: 2,5-dimetyl-1,3-oxazol-4-karboxylsyra LEDER: CC1=C(N=C(O1)C)C(=O)O
| Molekylformel | C6H7NO3 |
|---|---|
| PubChem CID | 2795465 |
| MDL-nummer | MFCD03011595 |
| IUPAC-namn | 2,5-dimetyl-1,3-oxazol-4-karboxylsyra |
| CAS | 23000-14-8 |
| InChI-nyckel | LHGRUGVXZLHYKE-UHFFFAOYSA-N |
| LEDER | CC1=C(N=C(O1)C)C(=O)O |
| Molekylvikt (g/mol) | 141.126 |
| Synonym | 2,5-dimethyloxazole-4-carboxylic acid,dimethyl-1,3-oxazole-4-carboxylic acid,4-oxazolecarboxylic acid, 2,5-dimethyl,2,5-dimethyl-1,3-oxazole-4-carboxylicacid,4-carboxy-2,5-dimethyl-1,3-oxazole,2,5-dimethyl-oxazole-4-carboxylic acid,2.5-dimethyl-1,3-oxazole-4-carboxylic acid |
N-metyl-(4-metyl-2-fenyl-1,3-oxazol-5-ylmetyl)amin, 97 %, Thermo Scientific™
CAS: 1031843-28-3 Molekylformel: C12H14N2O Molekylvikt (g/mol): 202.257 MDL-nummer: MFCD11109322 InChI-nyckel: XCBYKJIAOCVNGY-UHFFFAOYSA-N Synonym: n-methyl-4-methyl-2-phenyl-1,3-oxazol-5-ylmethyl amine,methyl 4-methyl-2-phenyl-1,3-oxazol-5-yl methyl amine,5-methylamino methyl-4-methyl-2-phenyl-1,3-oxazole,methyl 4-methyl-2-phenyl 1,3-oxazol-5-yl methyl amine,n-methyl-1-4-methyl-2-phenyl-1,3-oxazol-5-yl methanamine,n-methyl-1-4-methyl-2-phenyl-1,3-oxazol-5-yl methylamine PubChem CID: 33589464 IUPAC-namn: N-metyl-1-(4-metyl-2-fenyl-1,3-oxazol-5-yl)metanamin LEDER: CC1=C(OC(=N1)C2=CC=CC=C2)CNC
| Molekylformel | C12H14N2O |
|---|---|
| PubChem CID | 33589464 |
| MDL-nummer | MFCD11109322 |
| IUPAC-namn | N-metyl-1-(4-metyl-2-fenyl-1,3-oxazol-5-yl)metanamin |
| CAS | 1031843-28-3 |
| InChI-nyckel | XCBYKJIAOCVNGY-UHFFFAOYSA-N |
| LEDER | CC1=C(OC(=N1)C2=CC=CC=C2)CNC |
| Molekylvikt (g/mol) | 202.257 |
| Synonym | n-methyl-4-methyl-2-phenyl-1,3-oxazol-5-ylmethyl amine,methyl 4-methyl-2-phenyl-1,3-oxazol-5-yl methyl amine,5-methylamino methyl-4-methyl-2-phenyl-1,3-oxazole,methyl 4-methyl-2-phenyl 1,3-oxazol-5-yl methyl amine,n-methyl-1-4-methyl-2-phenyl-1,3-oxazol-5-yl methanamine,n-methyl-1-4-methyl-2-phenyl-1,3-oxazol-5-yl methylamine |
5-(4-etynylfenyl)-1,3-oxazol, 97 %, Thermo Scientific™
CAS: 501944-63-4 Molekylformel: C11H7NO Molekylvikt (g/mol): 169.183 MDL-nummer: MFCD08435847 InChI-nyckel: CYRYZDZQFDRTHD-UHFFFAOYSA-N Synonym: 5-4-ethynylphenyl-1,3-oxazole,5-4-ethynylphenyl oxazole,oxazole,5-4-ethynylphenyl,4-1,3-oxazol-5-yl phenylacetylene PubChem CID: 18525707 IUPAC-namn: 5-(4-etynylfenyl)-1,3-oxazol LEDER: C#CC1=CC=C(C=C1)C2=CN=CO2
| Molekylformel | C11H7NO |
|---|---|
| PubChem CID | 18525707 |
| MDL-nummer | MFCD08435847 |
| IUPAC-namn | 5-(4-etynylfenyl)-1,3-oxazol |
| CAS | 501944-63-4 |
| InChI-nyckel | CYRYZDZQFDRTHD-UHFFFAOYSA-N |
| LEDER | C#CC1=CC=C(C=C1)C2=CN=CO2 |
| Molekylvikt (g/mol) | 169.183 |
| Synonym | 5-4-ethynylphenyl-1,3-oxazole,5-4-ethynylphenyl oxazole,oxazole,5-4-ethynylphenyl,4-1,3-oxazol-5-yl phenylacetylene |
5-(2-bromfenyl)-1,3-oxazol,≥ 97 %, Thermo Scientific™
CAS: 328270-70-8 Molekylformel: C9H6BrNO Molekylvikt (g/mol): 224.057 MDL-nummer: MFCD05668985 InChI-nyckel: JLTHLCLAPCIKJJ-UHFFFAOYSA-N Synonym: 5-2-bromophenyl oxazole,5-2-bromophenyl-1,3-oxazole,oxazole,5-2-bromophenyl PubChem CID: 3780551 IUPAC-namn: 5-(2-bromfenyl)-1,3-oxazol LEDER: C1=CC=C(C(=C1)C2=CN=CO2)Br
| Molekylformel | C9H6BrNO |
|---|---|
| PubChem CID | 3780551 |
| MDL-nummer | MFCD05668985 |
| IUPAC-namn | 5-(2-bromfenyl)-1,3-oxazol |
| CAS | 328270-70-8 |
| InChI-nyckel | JLTHLCLAPCIKJJ-UHFFFAOYSA-N |
| LEDER | C1=CC=C(C(=C1)C2=CN=CO2)Br |
| Molekylvikt (g/mol) | 224.057 |
| Synonym | 5-2-bromophenyl oxazole,5-2-bromophenyl-1,3-oxazole,oxazole,5-2-bromophenyl |
4-metyl-2-fenyl-1,3-oxazol-5-karboxylsyra, 97 %, Thermo Scientific™
CAS: 91137-55-2 Molekylformel: C11H9NO3 Molekylvikt (g/mol): 203.197 MDL-nummer: MFCD01566859 InChI-nyckel: HRFYZRHGBICKAG-UHFFFAOYSA-N Synonym: 4-methyl-2-phenyloxazole-5-carboxylic acid,5-oxazolecarboxylicacid, 4-methyl-2-phenyl,5-oxazolecarboxylic acid, 4-methyl-2-phenyl PubChem CID: 4176428 IUPAC-namn: 4-metyl-2-fenyl-l,3-oxazol-5-karboxylsyra LEDER: CC1=C(OC(=N1)C2=CC=CC=C2)C(=O)O
| Molekylformel | C11H9NO3 |
|---|---|
| PubChem CID | 4176428 |
| MDL-nummer | MFCD01566859 |
| IUPAC-namn | 4-metyl-2-fenyl-l,3-oxazol-5-karboxylsyra |
| CAS | 91137-55-2 |
| InChI-nyckel | HRFYZRHGBICKAG-UHFFFAOYSA-N |
| LEDER | CC1=C(OC(=N1)C2=CC=CC=C2)C(=O)O |
| Molekylvikt (g/mol) | 203.197 |
| Synonym | 4-methyl-2-phenyloxazole-5-carboxylic acid,5-oxazolecarboxylicacid, 4-methyl-2-phenyl,5-oxazolecarboxylic acid, 4-methyl-2-phenyl |
5-Fenyl-1,3-oxazol-4-karboxylsyra, 97 %, Thermo Scientific™
CAS: 99924-18-2 Molekylformel: C10H7NO3 Molekylvikt (g/mol): 189.17 MDL-nummer: MFCD00105447 InChI-nyckel: RUKDIKJSGDVSIF-UHFFFAOYSA-N Synonym: 5-phenyloxazole-4-carboxylic acid,5-phenyl-4-oxazolecarboxylic acid,4-oxazolecarboxylic acid, 5-phenyl,5-phenyl-oxazole-4-carboxylic acid,buttpark 15357-35,4-carboxy-5-phenyl-1,3-oxazole,4-oxazolecarboxylicacid, 5-phenyl,5-phenyl-1,3-oxazol-4-ylcarboxylic acid,saltdata: free,2-amino-1,2,3,4-tetrahydro-5,8-dimethoxy-2-naphthalenecarboxylic acid methyl ester PubChem CID: 2776299 IUPAC-namn: 5-fenyl-1,3-oxazol-4-karboxylsyra LEDER: OC(=O)C1=C(OC=N1)C1=CC=CC=C1
| Molekylformel | C10H7NO3 |
|---|---|
| PubChem CID | 2776299 |
| MDL-nummer | MFCD00105447 |
| IUPAC-namn | 5-fenyl-1,3-oxazol-4-karboxylsyra |
| CAS | 99924-18-2 |
| InChI-nyckel | RUKDIKJSGDVSIF-UHFFFAOYSA-N |
| LEDER | OC(=O)C1=C(OC=N1)C1=CC=CC=C1 |
| Molekylvikt (g/mol) | 189.17 |
| Synonym | 5-phenyloxazole-4-carboxylic acid,5-phenyl-4-oxazolecarboxylic acid,4-oxazolecarboxylic acid, 5-phenyl,5-phenyl-oxazole-4-carboxylic acid,buttpark 15357-35,4-carboxy-5-phenyl-1,3-oxazole,4-oxazolecarboxylicacid, 5-phenyl,5-phenyl-1,3-oxazol-4-ylcarboxylic acid,saltdata: free,2-amino-1,2,3,4-tetrahydro-5,8-dimethoxy-2-naphthalenecarboxylic acid methyl ester |
2,5-dimetyl-1,3-oxazol-4-karbonylklorid, 97 %, Thermo Scientific™
CAS: 197719-27-0 Molekylformel: C6H6ClNO2 Molekylvikt (g/mol): 159.57 MDL-nummer: MFCD04972642 InChI-nyckel: XZXCVPKMCPXVFF-UHFFFAOYSA-N PubChem CID: 7018020 LEDER: CC1=NC(C(Cl)=O)=C(C)O1
| Molekylformel | C6H6ClNO2 |
|---|---|
| PubChem CID | 7018020 |
| MDL-nummer | MFCD04972642 |
| CAS | 197719-27-0 |
| InChI-nyckel | XZXCVPKMCPXVFF-UHFFFAOYSA-N |
| LEDER | CC1=NC(C(Cl)=O)=C(C)O1 |
| Molekylvikt (g/mol) | 159.57 |
4-(1,3-Oxazol-5-yl)anilin, 97 %, Thermo Scientific™
CAS: 1008-95-3 Molekylformel: C9H8N2O Molekylvikt (g/mol): 160.176 MDL-nummer: MFCD00052192 InChI-nyckel: SLJBMRSOKUTXDF-UHFFFAOYSA-N PubChem CID: 517747 IUPAC-namn: 4-(1,3-oxazol-5-yl)anilin LEDER: C1=CC(=CC=C1C2=CN=CO2)N
| Molekylformel | C9H8N2O |
|---|---|
| PubChem CID | 517747 |
| MDL-nummer | MFCD00052192 |
| IUPAC-namn | 4-(1,3-oxazol-5-yl)anilin |
| CAS | 1008-95-3 |
| InChI-nyckel | SLJBMRSOKUTXDF-UHFFFAOYSA-N |
| LEDER | C1=CC(=CC=C1C2=CN=CO2)N |
| Molekylvikt (g/mol) | 160.176 |
5-metyl-2-fenyl-1,3-oxazol-4-karbaldehyd, 97 %, Thermo Scientific™
CAS: 70170-23-9 Molekylformel: C11H9NO2 Molekylvikt (g/mol): 187.20 MDL-nummer: MFCD08435848 InChI-nyckel: JEXONSMPSXTJFF-UHFFFAOYSA-N Synonym: 5-methyl-2-phenyloxazole-4-carbaldehyde,4-oxazolecarboxaldehyde,5-methyl-2-phenyl,4-oxazolecarboxaldehyde, 5-methyl-2-phenyl PubChem CID: 12471041 IUPAC-namn: 5-metyl-2-fenyl-1,3-oxazol-4-karbaldehyd LEDER: CC1=C(C=O)N=C(O1)C1=CC=CC=C1
| Molekylformel | C11H9NO2 |
|---|---|
| PubChem CID | 12471041 |
| MDL-nummer | MFCD08435848 |
| IUPAC-namn | 5-metyl-2-fenyl-1,3-oxazol-4-karbaldehyd |
| CAS | 70170-23-9 |
| InChI-nyckel | JEXONSMPSXTJFF-UHFFFAOYSA-N |
| LEDER | CC1=C(C=O)N=C(O1)C1=CC=CC=C1 |
| Molekylvikt (g/mol) | 187.20 |
| Synonym | 5-methyl-2-phenyloxazole-4-carbaldehyde,4-oxazolecarboxaldehyde,5-methyl-2-phenyl,4-oxazolecarboxaldehyde, 5-methyl-2-phenyl |
4-metyloxazol-5-karbonylklorid, 97 %, Thermo Scientific™
CAS: 62348-24-7 Molekylformel: C5H4ClNO2 Molekylvikt (g/mol): 145.54 MDL-nummer: MFCD06200856 InChI-nyckel: YPKNOSGIABPXKS-UHFFFAOYSA-N Synonym: 4-methyloxazole-5-carbonyl chloride,5-oxazolecarbonyl chloride, 4-methyl,4-methyloxazole-5-carbonylchloride,4-methyl-5-oxazolecarbonyl chloride,4-methyl oxazole-5-carbonyl chloride,4-methyl-oxazole-5-carbonyl chloride,4-methyl-oxazole-5-carbonyl-chloride,4-methyloxazole-5-carboxylic acid chloride,5-oxazolecarbonyl chloride, 4-methyl-9ci PubChem CID: 2795217 IUPAC-namn: 4-metyl-l,3-oxazol-5-karbonylklorid LEDER: CC1=C(OC=N1)C(Cl)=O
| Molekylformel | C5H4ClNO2 |
|---|---|
| PubChem CID | 2795217 |
| MDL-nummer | MFCD06200856 |
| IUPAC-namn | 4-metyl-l,3-oxazol-5-karbonylklorid |
| CAS | 62348-24-7 |
| InChI-nyckel | YPKNOSGIABPXKS-UHFFFAOYSA-N |
| LEDER | CC1=C(OC=N1)C(Cl)=O |
| Molekylvikt (g/mol) | 145.54 |
| Synonym | 4-methyloxazole-5-carbonyl chloride,5-oxazolecarbonyl chloride, 4-methyl,4-methyloxazole-5-carbonylchloride,4-methyl-5-oxazolecarbonyl chloride,4-methyl oxazole-5-carbonyl chloride,4-methyl-oxazole-5-carbonyl chloride,4-methyl-oxazole-5-carbonyl-chloride,4-methyloxazole-5-carboxylic acid chloride,5-oxazolecarbonyl chloride, 4-methyl-9ci |