<h2>Peak 5 (skullcapflavone II)</h2><p>노란색 분말, HRESIMS \( m / z 375.1052\left[\mathrm{M}+\mathrm{H}^{+}\right. \)(calcd for \( \left.\mathrm{C}_{19} \mathrm{H}_{19} \mathrm{O}_{8} 375.1080\right)\), \( \lambda_{\max }(\mathrm{MeOH}) 266,310,352 \mathrm{~nm}\) .\({ }^{1} \mathrm{H}- \mathrm{NMR} \left(400 \mathrm{MHz}, \mathrm{DMSO}-d_{6}\right)\). \(\delta_{\mathrm{H}} 6.34 (\mathrm{1H}. \mathrm{s}, \mathrm{H-3})\), \( 6.62 (\mathrm{1H}, \mathrm{dd}, \left.\mathrm{J}=8.4,1.2 \mathrm{~Hz}, \mathrm{H}^{-3}\right)\), \(7.32(1 \mathrm{H}, \mathrm{t}, \mathrm{J}=8.0 \mathrm{~Hz}, \mathrm{H}-4' )\) , \(6.62 (\mathrm{H}, \mathrm{dd}, \mathrm{J}=8.4,1.2 \mathrm{~Hz}, \mathrm{H}-5^{\prime})\), \(4.01 (\mathrm{3H}, \mathrm{s}, \mathrm{7-OCH} ) \),\( 3.82\left(3 \mathrm{H}, \mathrm{s}, 6-\mathrm{OCH}_{3}\right)\), \(3.80\left(3 \mathrm{H}, \mathrm{s}, 8-\mathrm{OCH}_{3}\right), 3.75(3 \mathrm{H}, \mathrm{s} \),\( \left.6-\mathrm{OCH}_{3}\right), 12.64(1 \mathrm{H}, \mathrm{s}, 5-\mathrm{OH})\), \(10.15\left(1 \mathrm{H}\right. , \mathrm{s}, \left.2^{\prime}-\mathrm{OH}\right){ }^{13} \)\(\mathrm{C}- \mathrm{NMR} \left(100 \mathrm{MHz}, \mathrm{DMSO}_{-d_{6}}\right) \quad \delta_{\mathrm{C}} 162.4(\mathrm{C}-2), 111.9 \quad(\mathrm{C}-3) \),\( 182.5(\mathrm{C}-4)\), \(146.2 (\mathrm{C}-5)\), \( 135.8 (\mathrm{C}-6)\), \( 152.6 (\mathrm{C}-7)\), \( 132.5 (\mathrm{C}-8)\), \(148.5(\mathrm{C}-9)\), \(108.9(\mathrm{C}-10)\), \(106.3\left(\mathrm{C}-1^{\prime}\right)\), \(156.6 (\mathrm{C}-2')\),\( 108.8\left(\mathrm{C}-3^{\prime}\right)\), \(132.5\left(\mathrm{C}-4^{\prime}\right)\), \(102.3\left(\mathrm{C}-5^{\prime}\right)\), \(158.3\left(\mathrm{C}-6^{\prime}\right)\), \(60.6\left(6-\mathrm{OCH}_{3}\right)\), \(61.5\left(7-\mathrm{OCH}_{3}\right)\), \(61.7\left(8-\mathrm{OCH}_{3}\right)\), \(55.9\left(6-\mathrm{OCH}_{3}\right) \).</p><h2>Peak 6 (oroxylin A)</h2><p>노란색 분말, HRESIMS \(m/z 285.0746[\mathrm{M}+\mathrm{H}]^{+} \)(calcd for \( \left.\mathrm{C}_{16} \mathrm{H}_{13} \mathrm{O}_{5} 285.0763\right) \), \( \lambda_{\max }(\mathrm{MeOH}) 250,264,314 \mathrm{~nm}.\) \({ }^{1} \mathrm{H}- \mathrm{NMR} (400 \mathrm{MHz})\), \(\mathrm{DMSO}-d_{6} \delta_{\mathrm{H}}\) \(6.95 \mathrm{1H}. \mathrm{s}, \mathrm{H-3})\), \( 6.63 \left(1 \mathrm{H}\right. , \mathrm{s}, \mathrm{H-8})\), \( 8.05\left(1 \mathrm{H}, \mathrm{dd}, J=6.4,1.6 \mathrm{~Hz}, \mathrm{H}-2^{\prime}\right)\), \(7.58 (\mathrm{3H}, \mathrm{m}, \mathrm{H-3'}, 4', 5')\), \(8.05 (\mathrm{1H}, \mathrm{dd}, J=6.4,1.6 \mathrm{~Hz}, \mathrm{H}-6')\), \( 3.76\left(3 \mathrm{H}, \mathrm{s}, 6-\mathrm{OCH}_{3}\right)\), \(10.79(1 \mathrm{H}, \mathrm{s}, 7-\mathrm{OH})\), \(12.92(1 \mathrm{H}, \mathrm{s} \), \( 5-\mathrm{OH}) ;{ }^{13} \mathrm{C}-\mathrm{NMR}\left(100 \quad \mathrm{MHz}, \mathrm{DMSO}-d_{6}\right) \quad \delta_{\mathrm{C}} 163.2 (\mathrm{C}-2)\), \( 104.6 (\mathrm{C}-3)\), \( 182.2 (\mathrm{C}-4)\), \( 152.7 (\mathrm{C}-5)\), \( 130.7 (\mathrm{C}-6)\), \( 157.6 (\mathrm{C}-7)\), \( 94.4 (\mathrm{C}-8)\), \( 152.5 (\mathrm{C}-9)\), \( 104.3 (\mathrm{C}-10)\), \( 131.5 (\mathrm{C}-1')\), \( 126.4 (\mathrm{C}-2')\), \( 129.1 (\mathrm{C}-3')\), \( 132.0 (\mathrm{C}-4')\), \( 129.1 (\mathrm{C}-5')\), \( 126.4 \left(\mathrm{C}-6^{\prime}\right)\), \(59.9\left(6-\mathrm{OCH}_{3}\right) \)</p><h2>Peak 7 (dihydrooroxylin A)</h2><p>노란색 분말, HRESIMS \( m / z=287.0898[\mathrm{M}+\mathrm{H}]^{+} \)(calcd for \( \left.\mathrm{C}_{16} \mathrm{H}_{15} \mathrm{O}_{5}, 287.0919\right)\), \(\lambda_{\max }(\mathrm{MeOH}) 231,295 \mathrm{~nm}\) .\({ }^{1} \mathrm{H}-\mathrm{NMR} (400 MHz, DMSO-d \left.d_{6}\right)\delta_{\mathrm{H}}\) \(5.56(1 \mathrm{H} , \mathrm{dd}, J=13.0,3.0 \mathrm{HZ} \mathrm{H}- 2)\), \( 2.49 (\mathrm{1H}, \mathrm{dd}, J=17.1,3.0 \mathrm{HZ}, \mathrm{H}-3)\), \(3.24(1 \mathrm{H}, \mathrm{dd}, J= 17.1, 13.0 \mathrm{HZ}\), \(\mathrm{H}-3)\), \(6.01(1 \mathrm{H}, \mathrm{s}, \mathrm{H}-8)\), \(7.37-7.52 (5H, s, \left.\mathrm{H}^{\prime}-6^{1}\right)\), \(3.66\left(3 \mathrm{H}, \right. \mathrm{s}, \mathrm{6-OCH} \left.{ }_{3}\right)\) \(12.16\left(1 \mathrm{H}\right. , \mathrm{s}, \mathrm{5-OH})\); \( { }^{13} \mathrm{C}- \mathrm{NMR} (175 \left.\mathrm{MHz}, \mathrm{DMSO}-d_{6}\right)\) \(\delta_{\mathrm{C}} 78.4 \quad(\mathrm{C}-2)\), \(42.1 (\mathrm{C}-3) \), \( 196.6(\mathrm{C}-4)\), \(157.8(\mathrm{C}-5)\), \(129.1 (\mathrm{C}-6)\), \( 159.6(\mathrm{C}-7)\), \(95.1 (\mathrm{C}-8)\), \( 155.1 (\mathrm{C}-9)\), \( 101.8(\mathrm{C}-10)\), \(138.7\left(\mathrm{C}-1^{\prime}\right)\), \(126.6\left(\mathrm{C}-2^{\prime}\, 6^{\prime}\right) \), \( 128.5\left(\mathrm{C}-3^{\prime}, 4^{\prime}, 5^{\prime}\right)\), \(60.0\left(6-\mathrm{OCH}_{3}\right) \)</p><h2>Peak 8 (5,2'-dihydroxy-6,7,8-trimethoxyflavone)</h2><p>노란색 분말, HRESIMS \( m / z=345.0964[\mathrm{M}+\mathrm{H}]^{+} \)(calcd for \(\mathrm{C}_{18} \mathrm{H}_{17} \mathrm{O}_{7}\), \(345.0974 \), \(\lambda_{\max }(\mathrm{MeOH})\) \(277,337 \mathrm{~nm}\) .\({ }^{1} \mathrm{H}-\mathrm{NMR} \left(700 \mathrm{MHz}, \mathrm{DMSO}-d_{6}\right)\) \(\delta_{\mathrm{H}} 7.22 (\mathrm{1H}. \mathrm{s}, \mathrm{H-3})\), \( 7.07 (\mathrm{1H}, \mathrm{d}, \left.J=8.0 \mathrm{~Hz}, \mathrm{H}-3^{\prime}\right)\), \(7.40\left(1 \mathrm{H}, \mathrm{m}, \mathrm{H}-4^{\prime}\right)\), \(7.00\left(1 \mathrm{H}, \mathrm{m}, \mathrm{H}-5^{\prime}\right) \), \( 7.87\left(1 \mathrm{H}, \mathrm{d},J=8.0 \mathrm{~Hz}, \mathrm{H}-6^{\prime}\right)\), \(3.82 (3H, s, 6- \left.\mathrm{OCH}_{3}\right) \), \( 3.89\left(3 \mathrm{H}, \mathrm{s}, 7-\mathrm{OCH}_{3}\right)\), \(4.01\left(3 \mathrm{H}\right. , \mathrm{s}, \mathrm{8-OCH} \left.\mathrm{OCH}_{3}\right)\), \(12.73(1 \mathrm{H}, \mathrm{s} , 5-\mathrm{OH}) ;{ }^{13} \mathrm{C}-\mathrm{NMR} \left(175 \mathrm{MHz}, \mathrm{DMSO}-d_{6}\right)\) \(\delta_{\mathrm{C}} 162.1 (\mathrm{C}-2) \),\( 106.2(\mathrm{C}-3)\), \(182.8(\mathrm{C}-4)\), \(148.9(\mathrm{C}-5)\), \(135.7 (\mathrm{C}-6)\), \(158.4 (\mathrm{C}-7)\), \(132.6 (\mathrm{C}-8)\), \( 145.4 (\mathrm{C}-9)\), \( 103.9(\mathrm{C}-10)\), \( 117.6 (\mathrm{C}-1')\),\( 158.4 (\mathrm{C}-2')\), \( 117.0 (\mathrm{C}-3')\), \( 133.1\left(\mathrm{C}-4^{\prime}\right)\), \(119.0\left(\mathrm{C}-5^{\prime}\right)\), \(128.2 \left(\mathrm{C}-6^{\prime}\right)\), \(61.0\left(6-\mathrm{OCH}_{3}\right)\), \(61.8\left(7-\mathrm{OCH}_{3}\right)\), \(61.4\left(8-\mathrm{OCH}_{3}\right) \).</p>
Dihydrooroxylin A의 질량대 전하비가 287.0898 이야?
YES