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複素環(huán)式化合物

複素環(huán)式化合物は炭素原子と非炭素原子により構(gòu)成される環(huán)狀構(gòu)造の化合物である。これらの非炭素原子はヘテロ原子と総稱され，一般的なヘテロ原子は窒素、酸素、硫黃等である。前述したラクトン、ラクタム、環(huán)狀エーテル等の化合物はいずれも複素環(huán)式化合物であり，しかしこれらの化合物の性質(zhì)は同じ種類の鎖式化合物と類似するため，いずれも対応する章節(jié)に組み込んで説明する。本章は主に環(huán)構(gòu)造が穏やかで、ある程度の芳香族性を有する複素環(huán)式化合物，即ち芳香族複素環(huán)式化合物を説明する。複素環(huán)式化合物は種類が膨大であり，數(shù)量が多く，自然界に広く分布しており，多くの天然の複素環(huán)式化合物は動物、植物の體內(nèi)で重要な生理學(xué)的作用を果たす。例えば：植物內(nèi)のクロロフィル、動物の血中ヘモグロビン、漢方薬中の有効成分のアルカロイドと一部の配糖體、一部の抗生物質(zhì)とビタミン、タンパク質(zhì)のあるアミノ酸とヌクレオチドを構(gòu)成する塩基等はいずれも複素環(huán)構(gòu)造を含有する。従來の薬物中で、複素環(huán)構(gòu)造を含有するものは約半分を占める。そのため，複素環(huán)式化合物は有機化合物（特に有機薬物）中で重要な地位を占める。複素環(huán)式化合物中で五員、六員複素環(huán)及びそれらの縮合複素環(huán)化合物は最も普及しており，かつ最も重要である。そのため環(huán)のサイズによって，複素環(huán)式化合物は五員複素環(huán)及び六員複素環(huán)という二つの種類に分けられる。例えば上記フラン、チオフェン、ピロール、オキサゾール、イミダゾール及びそれらの縮合複素環(huán)化合物のインドール、ベンゾイミダゾール、ジベンゾフラン等はいずれも五員複素環(huán)式化合物であり，それに対してピリジン、ピリミジン及びそれらの縮合複素環(huán)化合物のキノリン、キナゾリン等はいずれも六員複素環(huán)式化合物である。各五員複素環(huán)式化合物と六員複素環(huán)式化合物中で，環(huán)構(gòu)造中のヘテロ原子の數(shù)量によって，また一つのヘテロ原子を含有する複素環(huán)及び二つ又はそれ以上のヘテロ原子を含有する複素環(huán)に分けられる。例えばフラン、チオフェン、ピリジン、インドール、キノリン、ジベンゾフラン等は一つのヘテロ原子を含有する複素環(huán)式化合物である；イミダゾール、ピリミジン、ベンゾイミダゾール、キナゾリン等は二つのヘテロ原子を含有する複素環(huán)式化合物である；それに対してプリンは二つ以上のヘテロ原子を含有するため，即ち複數(shù)のヘテロ原子を含有する複素環(huán)式化合物である。分子中の環(huán)構(gòu)造の形式によって，複素環(huán)式化合物はさらに複素単環(huán)及び縮合複素環(huán)という二つの種類に分けられる。例えばフラン、ピリジン、ピリミジン、イミダゾール等はいずれも複素単環(huán)式化合物であり，インドール、キノリン、ジベンゾフラン、プリン等は縮合複素環(huán)式化合物である。

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Chemical Name	CAS	MF
6-Amino-3-(5'-cyano-2'-pyridyl)pyridazine	1185311-11-8	C10H7N5
4-Amino-5-(4-chlorophenyl)thiazole	1368961-29-8	C9H7ClN2S
6-Amino-2-methylthio-4-(5'-cyano-2'-pyridyl)pyrimidine	1185318-48-2	C11H9N5S
5-(2-(methyl-d3)piperidin-1-yl-2,3,3,4,4,5,5,6,6-d9)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2368224-59-1	C17H15BD12N2O2
5-Bromo-4-(2-thienyl)thiazole	1267279-03-7	C7H4BrNS2
2,6-Dichloro-4-(5'-cyano-2'-pyridyl)pyrimidine	1185318-36-8	C10H4Cl2N4
tert-butyl 2-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophen-2-yl)pyrrolidine-1-carboxylate	2223005-21-6	C19H30BNO4S
5-(3-(methyl-d3)piperidin-1-yl-2,2,3,4,4,5,5,6,6-d9)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,4,6-d3	2368224-64-8	C17H12BD15N2O2
2-isopropyl-6-methylpyridin-4-amine	1367934-90-4	C9H14N2
5-Bromo-2-hydroxy-4-ethylpyrimidine	1381938-38-0	C6H7BrN2O
2-methyl-6-propylpyridin-4-ol	56039-21-5	C9H13NO
5-Amino-4-(2-tolyl)thiazole	1247523-40-5
4-bromo-7H-pyrrolo[2,3-d]pyrimidine-2,5,6-d3	2891510-79-3	C6HBrD3N3
5-Amino-4-(3-trifluoromethylphenyl)thiazole	1248954-10-0	C10H7F3N2S
5-Bromo-4-(4-pyridyl)thiazole	1243839-04-4	C8H5BrN2S
5-bromo-2-(2H?)methoxy-1,3-oxazole	2697156-51-5
2-(ethyl-d5)-3-(methyl-d3)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2368221-51-4	C14H14BD8NO2
4-Amino-5-(n-propyl)thiazole	1374664-24-0	C6H10N2S
2-bromo-3-(methoxy-d3)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2368221-68-3	C12H14BBrD3NO3
2-fluoro-6-(methoxy-d3)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,5-d2	2368221-88-7	C12H12BD5FNO3
tert-butyl 4-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidin-2-yl)piperazine-1-carboxylate-2,2,3,3,5,5,6,6-d8	2368222-04-0	C19H23BD8N4O4
1-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidin-2-yl-4,6-d2)azetidin-2,2,3,4,4-d5-3-ol	2364586-81-0	C13H13BD7N3O3
4-(azetidin-1-yl-d6)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,5,6-d3	2368222-98-2	C14H12BD9N2O2
4-Bromo-5-(cyclohexyl)thiazole	1264036-58-9	C9H12BrNS
4-Bromo-5-(2-fluorophenyl)thiazole	1264035-91-7	C9H5BrFNS
4-Amino-5-(4-fluorophenyl)thiazole	1368662-61-6	C9H7FN2S
tert-butyl 3-(5-bromofuran-2-yl)pyrrolidine-1-carboxylate	2167183-35-7	C13H18BrNO3
2,4-Dibomo-5-pyrrolidinothiazole	1353854-14-4	C7H8Br2N2S
4-Bromo-5-(3-thienyl)thiazole	1374664-97-7	C7H4BrNS2
4-Amino-5-(2-chlorophenyl)thiazole	1368426-91-8	C9H7ClN2S
5-Bromo-4-(3,4-difluorophenyl)thiazole	1374665-81-2	C9H4BrF2NS
2-Bromo-4-(2-trifluoromethylphenyl)thiophene	1215073-48-5	C11H6BrF3S
2,5-dibromo-4-(methyl-d3)pyridine-3,6-d2	2891511-86-5	C6Br2D5N
4-Bromo-1-(2,3-dibromo-4-pyridyl)imidazole	1357580-51-8	C8H4Br3N3
1-(5-chloro-2-(methoxy-d3)pyridin-4-yl-3,6-d2)-3-methylpiperidin-2,2,4,6,6-d5-4-ol	2891444-47-4	C12H7ClD10N2O2
3-cyclopropyl-2-(methoxy-d3)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2368221-48-9	C15H19BD3NO3
2-fluoro-3-(methyl-d3)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2368221-62-7	C12H14BD3FNO2
2-fluoro-3-(methoxy-d3)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-4,6-d2	2368221-80-9	C12H12BD5FNO3
2-(3-cyclopropyl-4-(tetrahydrofuran-3-yl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	2223004-67-7	C19H27BO3
2-(3-cyclopropyl-5-(tetrahydrofuran-3-yl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	2223003-13-0	C19H27BO3
2-(1,3-dioxan-5-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2241866-34-0	C15H22BNO4
2-(1,3-dioxan-5-yl)-6-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2241866-38-4	C15H21BFNO4
tert-Butyl 3-(2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-6-(trifluoromethyl)pyridin-4-yl)piperidine-1-carboxylate	2223005-46-5	C22H32BF3N2O4
4-Cyclopropyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-6-(trifluoromethyl)pyridine	2223049-05-4	C15H19BF3NO2
4-Cyclobutyl-2-fluoro-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2223041-90-3	C15H21BFNO2
1-(5-Chloro-2-pyrimidyl)pyrazole-4-boronic acid pinacol ester	1402174-54-2	C13H16BClN4O2
2-(propan-2-yl-d7)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2241875-53-4	C14H15BD7NO2
3-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-2,5,6-d3	2368225-14-1	C11H12BD3FNO2
5-fluoro-2-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,6-d2	2368225-21-0	C12H15BD2FNO2
3-(3-(methyl-d3)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl-5-d)pyridine-2,4,5,6-d4	2710289-76-0	C15H12BD8N3O2
5-(cyclopropyl-d5)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2710290-50-7	C14H15BD5NO2
2-(cyclopropyl-d5)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,4,5-d3	2710290-55-2	C14H12BD8NO2
2,4-difluoro-6-(methoxy-d3)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2710291-15-7	C12H13BD3F2NO3
2,4-difluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,6-d2	2710291-20-4	C11H12BD2F2NO2
2-(3-(methoxy-d3)azetidin-1-yl-2,2,3,4,4-d5)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,5,6-d3	2368223-19-0	C15H12BD11N2O3
4-(3-(methoxy-d3)azetidin-1-yl-2,2,3,4,4-d5)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2364585-85-1	C15H15BD8N2O3
2-((oxetan-3-yl-d5)oxy)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2364585-46-4	C14H15BD5NO4
2-(2-(methyl-d3)piperidin-1-yl-2,3,3,4,4,5,5,6,6-d9)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2368224-07-9	C17H15BD12N2O2
4-(3-(methyl-d3)piperidin-1-yl-2,2,3,4,4,5,5,6,6-d9)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2368224-28-4	C17H15BD12N2O2
3-(2-(methyl-d3)piperidin-1-yl-2,3,3,4,4,5,5,6,6-d9)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2368224-41-1	C17H15BD12N2O2
3-(3-(methyl-d3)piperidin-1-yl-2,2,3,4,4,5,5,6,6-d9)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-2,4,6-d3	2368224-46-6	C17H12BD15N2O2
5-(2-(methyl-d3)piperidin-1-yl-2,3,3,4,4,5,5,6,6-d9)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,4,6-d3	2368224-61-5	C17H12BD15N2O2
5-(4-methylpiperidin-1-yl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,4,6-d3	2368224-66-0	C17H24BD3N2O2
5-fluoro-2-(methyl-d3)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,6-d2	2368221-85-4	C12H12BD5FNO2
4-fluoro-2-(methoxy-d3)-3-(methyl-d3)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-6-d	2304816-92-8	C13H12BD7FNO3
4-(methoxy-d3)-6-(methyl-d3)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidine-2-d	2364585-45-3	C12H12BD7N2O3
2-(azetidin-1-yl-d6)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,5,6-d3	2368222-95-9	C14H12BD9N2O2
2-(3-(methoxy-d3)azetidin-1-yl-2,2,3,4,4-d5)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2368223-16-7	C15H15BD8N2O3
2-((oxetan-3-yl-d5)oxy)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,4,5-d3	2364586-10-5	C14H12BD8NO4
4-((oxetan-3-yl-d5)oxy)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2364586-19-4	C14H15BD5NO4
2-(4-methylpiperidin-1-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,5,6-d3	2368224-14-8	C17H24BD3N2O2
tert-butyl 4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl-3,5,6-d3)piperazine-1-carboxylate-2,2,3,3,5,5,6,6-d8	2368224-19-3	C20H21BD11N3O4
2-(2-methylpiperidin-1-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,4,5-d3	2368224-33-1	C17H24BD3N2O2
2-(4-(methyl-d3)piperidin-1-yl-2,2,3,3,4,5,5,6,6-d9)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2368224-38-6	C17H15BD12N2O2
1-(2-Chloro-4-pyridyl)imidazole-4-boronic acid pinacol ester	2223045-07-4	C14H17BClN3O2
1-(6-Amino-2-pyridyl)imidazole-4-boronic acid pinacol ester	1402240-43-0	C14H19BN4O2
3-Methyl-1-(6-chloropyridin-3-yl)-1H-pyrazole-4-boronic acid pinacol ester	2223054-44-0	C15H19BClN3O2
1-(4-PYRIDINYL)-1H-PYRAZOL-3-YLBORONIC ACID PINACOL ESTER	2223047-58-1
2-(tetrahydro-2H-pyran-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidine	2223003-25-4	C15H23BN2O3
1-CYCLOPENTYL-4-(TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-1H-1,2,3-TRIAZOLE	2223054-73-5	C13H22BN3O2
4-(PIPERAZIN-1-YL)PYRIDINE-3-BORONIC ACID PINACOL ESTER	1353889-06-1	C15H24BN3O2
5-(4-tert-Butylphenyl)pyridine-2-boronic acid pinacol ester	1402233-38-8	C21H28BNO2
4-Amino-2-(thiazol-5-yl)pyrimidine-5-boronic acid pinacol ester	2223048-93-7	C13H17BN4O2S
2-Amino-4-(3-thienyl)pyrimidine-5-boronic acid pinacol ester	2223011-97-8	C14H18BN3O2S
2-Amino-4-(thiazol-5-yl)pyrimidine-5-boronic acid pinacol ester	2223036-99-3	C13H17BN4O2S
tert-butyl 3-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiazol-2-yl)azetidine-1-carboxylate	2223053-23-2	C17H27BN2O4S
tert-butyl 3-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)furan-2-yl)azetidine-1-carboxylate	2223049-25-8	C18H28BNO5
4,4,5,5-tetramethyl-2-(5-(tetrahydrofuran-3-yl)furan-2-yl)-1,3,2-dioxaborolane	2222996-68-9	C14H21BO4
tert-butyl 2-(2-cyclopropyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)morpholine-4-carboxylate	2223006-35-5	C24H36BNO5
2-(4-cyclopropyl-2-(tetrahydrofuran-3-yl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	2223002-82-0	C19H27BO3
4-(2-(methoxy-d3)ethoxy-1,1,2,2-d4)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2710292-25-2	C14H15BD7NO4
2-(methoxymethyl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-3,4,5-d3	2710292-53-6	C13H17BD3NO3
2-((methoxy-d3)methyl-d2)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2710292-62-7	C13H15BD5NO3
2-fluoro-4-(methoxy-d3)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2710293-09-5	C12H14BD3FNO3
2-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-5,6-d2-4-amine	2710295-99-9	C12H17BD2N2O2
tert-butyl 4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl-3,5,6-d3)piperidine-1-carboxylate-2,2,3,3,4,5,5,6,6-d9	2710294-86-1	C21H21BD12N2O4
tert-butyl 4-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl-2,4,6-d3)piperidine-1-carboxylate	2710294-91-8	C21H30BD3N2O4
tert-butyl 4-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl-3,4,6-d3)piperidine-1-carboxylate-2,2,3,3,4,5,5,6,6-d9	2710295-07-9	C21H21BD12N2O4
3-(tetrahydro-2H-pyran-4-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-2,4,6-d3	2710295-27-3	C16H21BD3NO3
5-(tetrahydro-2H-pyran-4-yl-3,3,4,5,5-d5)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine	2710295-32-0	C16H19BD5NO3