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small changes EP-0505058-B1
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ebenaissa committed Sep 8, 2017
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Expand Up @@ -329,10 +329,10 @@ wherein Z has the same significance as described above, preferably in the presen
<p xml:id="_25607">The present invention is described by referring to Examples and Reference Examples below. </p>
<head xml:id="_8b59b">Example 1 </head>
<head xml:id="_d3407">4,5-Dihydro-7-hydroxy-5-oxo-N-(3-pyridyl)thieno[3,2-b]pyridine-6-carboxamide (Compound 1)</head>
<p xml:id="_72938">A mixture of <measure type="value"><num>2.43</num> <measure type="MASS" unit="g">g</measure></measure> (<measure type="value"><num>10.2</num> <measure type="AMOUNT_OF_SUBSTANCE" unit="mmol">mmols</measure></measure>) of ethyl 4,5-dihydro-7-hydroxy-5-oxothieno[3,2-b]pyridine-6-carboxylate [J. Chem. Res. (S), 6 (1980); J. Chem. Res. (M), 113 (1980)], <measure type="value"><num>1.00</num> <measure type="MASS">g</measure></measure> (<measure type="value"><num>10.6</num> <measure type="AMOUNT_OF_SUBSTANCE" unit="mmol">mmols</measure></measure>) of <measure type="value"><num>3</num>-aminopyridine, <measure type="value"><num>50</num> <measure type="VOLUME" unit="ml">ml</measure></measure> of xylene and <measure type="value"><num>10</num> <measure type="VOLUME">ml</measure></measure> of dimethylformamide was heated at <measure type="value"><num>140</num><measure type="TEMPERATURE" unit="°C">°C</measure></measure> for <measure type="value"><num value="1">an</num> <measure type="TIME" unit="h">hour</measure></measure>. After completion of the reaction, insoluble matters were filtered and recrystallized from dimethylformamide to give <measure type="value"><num>1.56</num> <measure type="MASS">g</measure></measure> (yield: <measure type="value"><num>54</num><measure type="FRACTION" unit="%">%</measure></measure>) of Compound 1.
<p xml:id="_72938">A mixture of <measure type="value"><num>2.43</num> <measure type="MASS" unit="g">g</measure></measure> (<measure type="value"><num>10.2</num> <measure type="AMOUNT_OF_SUBSTANCE" unit="mmol">mmols</measure></measure>) of ethyl 4,5-dihydro-7-hydroxy-5-oxothieno[3,2-b]pyridine-6-carboxylate [J. Chem. Res. (S), 6 (1980); J. Chem. Res. (M), 113 (1980)], <measure type="value"><num>1.00</num> <measure type="MASS">g</measure></measure> (<measure type="value"><num>10.6</num> <measure type="AMOUNT_OF_SUBSTANCE" unit="mmol">mmols</measure></measure>) of <measure type="value"><num>3</num></measure>-aminopyridine, <measure type="value"><num>50</num> <measure type="VOLUME" unit="ml">ml</measure></measure> of xylene and <measure type="value"><num>10</num> <measure type="VOLUME">ml</measure></measure> of dimethylformamide was heated at <measure type="value"><num>140</num><measure type="TEMPERATURE" unit="°C">°C</measure></measure> for <measure type="value"><num value="1">an</num> <measure type="TIME" unit="h">hour</measure></measure>. After completion of the reaction, insoluble matters were filtered and recrystallized from dimethylformamide to give <measure type="value"><num>1.56</num> <measure type="MASS">g</measure></measure> (yield: <measure type="value"><num>54</num><measure type="FRACTION" unit="%">%</measure></measure>) of Compound 1.
<figure><table cols="4"><row><cell>Elemental analysis: C13H9N3O3S </cell></row><row><cell>Calcd. (%) :</cell><cell>C 54.35,</cell><cell>H 3.16,</cell><cell>N 14.63 </cell></row><row><cell>Found (%) :</cell><cell>C 54.11,</cell><cell>H 2.85,</cell><cell>N 14.48 </cell></row></table></figure>
IR (KBr) <measure type="list"><measure type="ENERGY" unit="cm^-1">cm-1</measure>:<num>3450</num>(br), <num>1638</num>, <num>1594</num>, <num>1547</num>, <num>1480</num>, <num>1408</num>, <num>1364</num>, <num>1264</num>, <num>1228</num>, <num>799</num>, <num>761</num></measure>
NMR (CF3 CO2 D) δ <measure type="list">(<measure type="CONCENTRATION" unit="ppm">ppm</measure>):<num>9.79</num>(1H, s), <num>8.81</num>(1H, d, J= <measure type="value"><num>8.8</num><measure type="FREQUENCY" unit="Hz">Hz</measure></measure>), <num>8.63</num>(1H, d, J=<measure type="value"><num>5.1</num><measure type="FREQUENCY" unit="Hz">Hz</measure></measure>), <num>8.15</num>(1H, m), <num>8.10</num> (1H, d, J=<measure type="value"><num>5.4</num><measure type="FREQUENCY" unit="Hz">Hz</measure></measure>), <num>7.28</num>(1H, d, J=<measure type="value"><num>5.4</num><measure type="FREQUENCY" unit="Hz">Hz</measure></measure>)</measure></measure></p>
NMR (CF3 CO2 D) δ <measure type="list">(<measure type="CONCENTRATION" unit="ppm">ppm</measure>):<num>9.79</num>(1H, s), <num>8.81</num>(1H, d, J= <measure type="value"><num>8.8</num><measure type="FREQUENCY" unit="Hz">Hz</measure></measure>), <num>8.63</num>(1H, d, J=<measure type="value"><num>5.1</num><measure type="FREQUENCY" unit="Hz">Hz</measure></measure>), <num>8.15</num>(1H, m), <num>8.10</num> (1H, d, J=<measure type="value"><num>5.4</num><measure type="FREQUENCY" unit="Hz">Hz</measure></measure>), <num>7.28</num>(1H, d, J=<measure type="value"><num>5.4</num><measure type="FREQUENCY" unit="Hz">Hz</measure></measure>)</measure></p>
<head xml:id="_9a299">Example 2</head>
<head xml:id="_e2133">4,5-Dihydro-7-hydroxy-5-oxo-N-(4-pyridyl)thieno[3,2-b]pyridine-6-carboxamide (Compound 2)</head>
<p xml:id="_2196c">A mixture of <measure type="value"><num>2.48</num> <measure type="MASS" unit="g">g</measure></measure> (<measure type="value"><num>10.4</num> <measure type="AMOUNT_OF_SUBSTANCE" unit="mmol">mmols</measure></measure>) of ethyl 4,5-dihydro-7-hydroxy-5-oxothieno[3,2-b]pyridine-6-carboxylate [J. Chem. Res. (S), 6 (1980); J. Chem. Res. (M), 113 (1980)], <measure type="value"><num>1.01</num> <measure type="MASS">g</measure></measure> (<measure type="value"><num>10.7</num> <measure type="AMOUNT_OF_SUBSTANCE" unit="mmol">mmols</measure></measure>) of 4-aminopyridine, <measure type="value"><num>50</num> <measure type="VOLUME" unit="ml">ml</measure></measure> of xylene and <measure type="value"><num>10</num> <measure type="VOLUME">ml</measure></measure> of dimethylformamide was heated at <measure type="value"><num>140</num><measure type="TEMPERATURE" unit="°C">°C</measure></measure> for <measure type="value"><num value="1">an</num> <measure type="TIME" unit="h">hour</measure></measure>. After completion of the reaction, insoluble matters were filtered and tritylated with dimethylformamide with heating to give <measure type="value"><num>1.99</num> <measure type="MASS" unit="g">g</measure></measure> (yield: <measure type="value"><num>67</num><measure type="FRACTION" unit="%">%</measure></measure>) of Compound 2.
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