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中文名称 英文名称 CAS号 化学式 结构式图片
—— prop-2-enyl (7R)-2-ethylsulfanyl-5-methyl-7-[4-[(2-methylphenyl)methoxy]phenyl]-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C26H28N4O3S
prop-2-enyl (7R)-2-ethylsulfanyl-5-methyl-7-[4-[(2-methylphenyl)methoxy]phenyl]-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7R)-2-ethylsulfanyl-5-methyl-7-[3-[(4-methylphenyl)methoxy]phenyl]-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C26H28N4O3S
prop-2-enyl (7R)-2-ethylsulfanyl-5-methyl-7-[3-[(4-methylphenyl)methoxy]phenyl]-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— propyl (7S)-7-(5-bromo-2-propoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C21H27BrN4O3S
propyl (7S)-7-(5-bromo-2-propoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7S)-2-ethylsulfanyl-7-(furan-2-yl)-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C16H18N4O3S
prop-2-enyl (7S)-2-ethylsulfanyl-7-(furan-2-yl)-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7S)-7-[3-[(2-chlorophenyl)methoxy]phenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C25H25ClN4O3S
prop-2-enyl (7S)-7-[3-[(2-chlorophenyl)methoxy]phenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— propan-2-yl (7R)-2-ethylsulfanyl-5-methyl-7-thiophen-2-yl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C16H20N4O2S2
propan-2-yl (7R)-2-ethylsulfanyl-5-methyl-7-thiophen-2-yl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7R)-2-ethylsulfanyl-5-methyl-7-(4-pentoxyphenyl)-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C23H30N4O3S
prop-2-enyl (7R)-2-ethylsulfanyl-5-methyl-7-(4-pentoxyphenyl)-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7R)-7-(3-chlorophenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C18H19ClN4O2S
prop-2-enyl (7R)-7-(3-chlorophenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7R)-7-(4-ethoxy-3-methoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C21H26N4O4S
prop-2-enyl (7R)-7-(4-ethoxy-3-methoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— propyl (7R)-7-[2-[(2-chlorophenyl)methoxy]phenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C25H27ClN4O3S
propyl (7R)-7-[2-[(2-chlorophenyl)methoxy]phenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7R)-7-(3-ethoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C20H24N4O3S
prop-2-enyl (7R)-7-(3-ethoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7S)-2-ethylsulfanyl-7-(4-hexoxyphenyl)-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C24H32N4O3S
prop-2-enyl (7S)-2-ethylsulfanyl-7-(4-hexoxyphenyl)-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7R)-2-ethylsulfanyl-5-methyl-7-(4-propan-2-yloxyphenyl)-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C21H26N4O3S
prop-2-enyl (7R)-2-ethylsulfanyl-5-methyl-7-(4-propan-2-yloxyphenyl)-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— propan-2-yl (7R)-7-[4-[2-(diethylamino)-2-oxoethoxy]-3-methoxyphenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C25H35N5O5S
propan-2-yl (7R)-7-[4-[2-(diethylamino)-2-oxoethoxy]-3-methoxyphenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7S)-7-[2-[(4-tert-butylphenyl)methoxy]phenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C29H34N4O3S
prop-2-enyl (7S)-7-[2-[(4-tert-butylphenyl)methoxy]phenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7S)-2-ethylsulfanyl-7-[4-[(2-fluorophenyl)methoxy]phenyl]-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C25H25FN4O3S
prop-2-enyl (7S)-2-ethylsulfanyl-7-[4-[(2-fluorophenyl)methoxy]phenyl]-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7R)-7-(4-chlorophenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C18H19ClN4O2S
prop-2-enyl (7R)-7-(4-chlorophenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— propan-2-yl (7S)-7-[4-[(4-tert-butylphenyl)methoxy]phenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C29H36N4O3S
propan-2-yl (7S)-7-[4-[(4-tert-butylphenyl)methoxy]phenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7S)-7-[4-[(4-tert-butylphenyl)methoxy]phenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C29H34N4O3S
prop-2-enyl (7S)-7-[4-[(4-tert-butylphenyl)methoxy]phenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7S)-7-(5-bromo-2-methoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C19H21BrN4O3S
prop-2-enyl (7S)-7-(5-bromo-2-methoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7R)-7-[4-[(3-chlorophenyl)methoxy]-3-methoxyphenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C26H27ClN4O4S
prop-2-enyl (7R)-7-[4-[(3-chlorophenyl)methoxy]-3-methoxyphenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7S)-7-(5-bromo-2-ethoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C20H23BrN4O3S
prop-2-enyl (7S)-7-(5-bromo-2-ethoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7S)-2-ethylsulfanyl-7-[4-[(2-fluorophenyl)methoxy]-3-methoxyphenyl]-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C26H27FN4O4S
prop-2-enyl (7S)-2-ethylsulfanyl-7-[4-[(2-fluorophenyl)methoxy]-3-methoxyphenyl]-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7S)-2-ethylsulfanyl-7-(2-methoxyphenyl)-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C19H22N4O3S
prop-2-enyl (7S)-2-ethylsulfanyl-7-(2-methoxyphenyl)-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— propyl (7R)-7-(5-bromofuran-2-yl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C16H19BrN4O3S
propyl (7R)-7-(5-bromofuran-2-yl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7S)-2-ethylsulfanyl-7-(4-hexoxy-3-methoxyphenyl)-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C25H34N4O4S
prop-2-enyl (7S)-2-ethylsulfanyl-7-(4-hexoxy-3-methoxyphenyl)-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7S)-2-ethylsulfanyl-5-methyl-7-thiophen-2-yl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C16H18N4O2S2
prop-2-enyl (7S)-2-ethylsulfanyl-5-methyl-7-thiophen-2-yl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7R)-7-[4-[(2-chlorophenyl)methoxy]-3-methoxyphenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C26H27ClN4O4S
prop-2-enyl (7R)-7-[4-[(2-chlorophenyl)methoxy]-3-methoxyphenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7S)-7-(3-ethoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C20H24N4O3S
prop-2-enyl (7S)-7-(3-ethoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7R)-7-(3-bromo-5-ethoxy-4-methoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C21H25BrN4O4S
prop-2-enyl (7R)-7-(3-bromo-5-ethoxy-4-methoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— propyl (7S)-7-[2-[(2-chlorophenyl)methoxy]phenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C25H27ClN4O3S
propyl (7S)-7-[2-[(2-chlorophenyl)methoxy]phenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7R)-7-(4-butoxy-3-methoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C23H30N4O4S
prop-2-enyl (7R)-7-(4-butoxy-3-methoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7R)-7-[4-[(4-chlorophenyl)methoxy]-3-methoxyphenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C26H27ClN4O4S
prop-2-enyl (7R)-7-[4-[(4-chlorophenyl)methoxy]-3-methoxyphenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— propan-2-yl (7R)-7-(3-chlorophenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C18H21ClN4O2S
propan-2-yl (7R)-7-(3-chlorophenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7S)-7-[4-[(4-chlorophenyl)methoxy]phenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C25H25ClN4O3S
prop-2-enyl (7S)-7-[4-[(4-chlorophenyl)methoxy]phenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7R)-2-ethylsulfanyl-5-methyl-7-(2-phenylmethoxyphenyl)-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C25H26N4O3S
prop-2-enyl (7R)-2-ethylsulfanyl-5-methyl-7-(2-phenylmethoxyphenyl)-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— propyl (7R)-7-(5-bromo-2-methoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C19H23BrN4O3S
propyl (7R)-7-(5-bromo-2-methoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7R)-7-(3-bromo-4-methoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C19H21BrN4O3S
prop-2-enyl (7R)-7-(3-bromo-4-methoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7S)-7-(4-butoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C22H28N4O3S
prop-2-enyl (7S)-7-(4-butoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7R)-7-[2-[(4-tert-butylphenyl)methoxy]phenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C29H34N4O3S
prop-2-enyl (7R)-7-[2-[(4-tert-butylphenyl)methoxy]phenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7S)-7-(3-bromo-4-methoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C19H21BrN4O3S
prop-2-enyl (7S)-7-(3-bromo-4-methoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— propyl (7R)-7-[2-[(4-chlorophenyl)methoxy]phenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C25H27ClN4O3S
propyl (7R)-7-[2-[(4-chlorophenyl)methoxy]phenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7R)-7-(3,4-dimethoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C20H24N4O4S
prop-2-enyl (7R)-7-(3,4-dimethoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— propan-2-yl (7R)-7-[3-[(4-chlorophenyl)methoxy]phenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C25H27ClN4O3S
propan-2-yl (7R)-7-[3-[(4-chlorophenyl)methoxy]phenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7R)-7-[3-ethoxy-4-[(2-methylphenyl)methoxy]phenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C28H32N4O4S
prop-2-enyl (7R)-7-[3-ethoxy-4-[(2-methylphenyl)methoxy]phenyl]-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7S)-2-ethylsulfanyl-5-methyl-7-(4-propoxyphenyl)-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C21H26N4O3S
prop-2-enyl (7S)-2-ethylsulfanyl-5-methyl-7-(4-propoxyphenyl)-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7R)-7-(4-butoxy-3-ethoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C24H32N4O4S
prop-2-enyl (7R)-7-(4-butoxy-3-ethoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7S)-7-(4-ethoxy-3-methoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C21H26N4O4S
prop-2-enyl (7S)-7-(4-ethoxy-3-methoxyphenyl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7S)-7-(5-bromofuran-2-yl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C16H17BrN4O3S
prop-2-enyl (7S)-7-(5-bromofuran-2-yl)-2-ethylsulfanyl-5-methyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate
—— prop-2-enyl (7S)-2-ethylsulfanyl-5-methyl-7-(4-pentoxyphenyl)-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate —— C23H30N4O3S
prop-2-enyl (7S)-2-ethylsulfanyl-5-methyl-7-(4-pentoxyphenyl)-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate