修饰的胶原蛋白分子的制作方法_5

文档序号:9634758阅读:来源:国知局
IH, H-4'), 4. 40 (s, 2H, CH2-C = C), 4. 33 (d, J = 12. 4Hz, 1H, H-6'), 4. 10 (d, J = II. 6Hz, 1H, H-6'), 4. 03 (d, J = 9. 7Hz, 1H, H-5), 3. 83 - 3. 77 (m, 1H, H-2'), 3. 72 (s, 3H, OCH3), 3. 55 (s, 1H, H-5' ), 2. 01 (s, 3H, C (0) CH3), 2. 01 (s, 3H, C (0) CH3), 2. 00 (s, 3H, C(O) CH3) , I. 99 (s, 3H, C (0) CH3) , 0. 16 (s, 9H, Si (CH3) 3) ;13C NMR (I OOMHz, CDC13) :δ 170. 20, 169. 57, 169. 32, 167. 32, 162. 27, 137. 80, 128. 99, 128. 24, 126. 33, 100. 83, 100. 40, 100. 17, 96. 10, 92. 54, 92. 48, 75. 76, 74. 22, 72. 57, 72. 12, 71. 40, 69. 22, 69. 14, 66. 76, 5 6. 53, 55. 03, 53. 04, 20. 97, 20. 72, 20. 63, -0· 06 ;ESI MS:m/z 对[C34H42Cl3N015Si+Na] +的计算 值:860. 1282,观察值 860. 1296。
[0167] 3-三甲代甲硅烷基炔丙基0-(甲基2, 3, 4-三-0-乙酰基-β -D-吡喃葡萄糖 醛酸酯)_(1 - 3)-4,6-0-亚苄基-2-脱氧-2-乙酰胺基-β-D-吡喃半乳糖苷6:使用 从Β?lot等人[2]改良的程序进行对三氯乙酰胺基的还原。二糖5 (0. 353g,0. 42Immo 1) 溶解在甲苯(8.7mL)中,并加入三丁基锡烷(1132yL,4.21mmol)和2,2' -偶氮二异丁 腈(34. 5mg,0. 211mmol)。在室温搅拌30min后,将反应混合物加热至80°C并搅拌另外 4h 30min。然后将反应冷却至室温并浓缩以得到白色固体。产物通过快速色谱(3-11 % THF = CH2Cl2)纯化得到所需的为白色固体的乙酰胺6(0. 281g,91% )。Rf= 0.25(4% THF = CH2Cl2) · 1H NMR (400MHz,CDCl3) : δ 7. 53 (m,2H,ArH),7. 37 - 7. 32 (m,3H,ArH),5. 81 (d,J =6. 6Hz,1H,NH),5· 56 (s,1H,PhCH),5· 25 - 5· 18 (m,3H,H-3, H-4, Η-Γ ),5· 01 (t,J = 7. 7Hz,1H,H-2),4. 92 - 4. 88 (m,2H,H-l,H-3'),4. 43 - 4. 36 (m,3H,H-4',CH2-C E c),4. 3 0 (d,J = 12. 5Hz,1H,H-6'),4. 08 - 4. 02 (m,2H,H-5, H-6'),3. 70 (s,3H,OCH3),3. 53 (s, 1H,H-5'),3. 47 - 3. 41 (m,1H,H-2'),2. 02 (s,6H,NHC (0) CH3, C (0) CH3),2. 00 (s,3H,C (0) CH3) , I. 98 (s, 3H, C (0) CH3) , 0. 18 (s, 9H, Si (CH3) 3) ;13C NMR (I OOMHz, CDC13) :δ 171. 31, 170. 29, 169. 59, 169. 18, 167. 47, 137. 90, 128. 92, 126. 37, 100. 85, 100. 81, 10 0. 57, 97. 07, 91. 88, 75. 98, 75. 16, 72. 52, 72. 03, 71. 74, 69. 29, 69. 18, 66. 60, 56. 75, 54. 3 1, 52. 98, 23. 98, 20. 86, 20. 75, 20. 65, -0· 07 ;ESI MS:m/z 对[C34H45N015Si+Na]+的计算值 :758.2456,观察值 758. 2469。
[0168] 2-炔丙基0-(甲基2, 3, 4-三-0-乙酰基-β -D-吡喃葡萄糖醛酸 酯)-(1 - 3) -2-脱氧-2-乙酰胺基-β -D-吡喃半乳糖苷7:乙酰胺6 (0. 353g,0. 480mmol) 溶解在4〇0!1/水(4:1,3.〇1^)中并在80°(:搅拌。3〇1^11后,将反应混合物冷却并浓缩。得 到的浓缩物与甲苯(3x3mL)共蒸发以完全去除AcOH。
[0169] 向粗制二醇(0· 242g, 0· 374mmol)在 THF(3. 7mL)中的溶液中加入 TBAF(在 THF 中的IM溶液,0.448mmol,448 yL)并将混合物在0°C搅拌1.5hr。此时加入Amberlyst IR-120树脂,并将反应物搅拌另外30min。过滤后,将混合物浓缩以得到淡黄色固体 。将残余物通过快速色谱(5 - 7% MeOH = CH2Cl2)纯化得到所需的为白色固体的化合 物(0· 147g,53 % )。Rf= 0· 30(10 % MeOH:CH 2C12). 1H NMR(400MHz,CD3OD) : δ 5. 35(t,J =6. 6Hz, 1H, H-3) , 5. I I (t, J = 9. 8Hz, 1H, H-4) ,5.00 (dd, J = 8. 0Hz, 9. 4Hz, 1H, H-2), 4. 91 (d, J = 8. 0Hz, 1H, H-l), 4. 66 (d, J = 8. 2Hz, 1H, H-I'), 4. 43 -4. 37 (m, 2H, CH2-C = C), 4. 29 (d, J = 10. 0Hz, 1H, H-5), 4. 07 (bs, 1H, H-4' ), 4. 00 -3. 98 (m, 1H, H-2'),3. 91 - 3. 89 (m, 1H, H-3'),3. 81 - 3. 72 (m, 2H, H-6'),3. 75 (s, 3H, OCH3 ),3. 54 (t, J = 5. 8Hz, 1H, H-5'), 2. 87(t, J = 2. 32Hz, 1H, C = CH), 2. 06 (s, 3H, NHC (0) CH3), 2· 03 (s,3H,C(O)CH3), 2· Ol (s,3H,C(O)CH3), 2· OO (s,3H,C(O)CH3) ;13C NMR (100MHz,CD 30D) : δ 173. 41, 171. 48, 171. 21, 169. 31, 102. 60, 100. 50, 81. 36, 80. 14, 76. 47, 76. 13, 73. 4 5, 72. 95, 72. 57, 70. 84, 69. 17, 62. 40, 56. 43, 53. 41, 52. 56, 23. 40, 20. 97, 20. 77, 20. 49, 20. 41 ;ESI MS:m/z 对[C24H33N015+Na]+的计算值:598. 1748,观察值 598. 1760。
[0170] 2-炔丙基0-(甲基2, 3, 4-三-0-乙酰基-β -D-吡喃葡萄糖醛酸 酯)_(1 - 3)-6-0-苯甲酰基-2-脱氧-2-乙酰胺基-β -D-吡喃半乳糖苷8: 二糖7 (30mg,0. 052mmol)溶解在无水吡啶(2. ImL)中并向其中加入苯甲酰氰 (20. 6mg, 0. 157mmol)和 4_(二甲基氨基)P比啶(10. 2mg, 0. 084mmol)。将反应物 在室温搅拌3hr,然后浓缩以得到黄色固体。将残余物通过快速色谱(1 - 4% MeOH = CH2Cl2)纯化以得到所需的为白色固体的化合物8(27. 8mg,78% )。Rf= 0.45(10 ^MeOHia^CU.iHMffiGOOMHz.CDClVCDWDaiDhSS.ig-S.nOiiJH.ArHhT.Te-7. 70 (m, 1H, ArH), 7. 63 - 7. 59 (m, 2H, ArH), 5. 45 (t, J = 9. 5Hz, 1H, H-3), 5. 27 (t, J = 9. 6Hz, 1H, H-4), 5. 00 (t, J = 9. 4Hz, 1H, H-2), 4. 98 (d, J = 8. 5Hz, 1H, H-I'), 4. 97 (d, J =8. 0Hz, 1H, H-l), 4. 72 - 4. 65 (m, 2H, H-6', H-6'), 4. 52 - 4. 45 (m, 2H, CH2-C = C), 4. 35 - 4. 30 (m, 3H, H-5, H-3',H-4'),4. 05 (t, J = 6. 2Hz, 1H, H-5'),4. 01 - 3. 90 (m, 1H, H-2'), 3. 83 (s, 3H, OCH3), 2. 32 (t, J = 2. 32Hz, 1H, C = CH), 2. 21 (s, 3H, NHC (0) CH3), 2. 19 (s, 3H, C(O)CH3), 2. 17 (s, 3H, C(O)CH3), 2. 14 (s, 3H, C(O)CH3) ;13C NMR (100MHz, CD3 0D) : δ 174. 08, 172. 31, 171. 99, 171. 95, 169. 86, 168. 62, 135. 18, 131. 66, 131. 48, 130. 36, I 03. 24, 100. 26, 81. 16, 80. 53, 76. 91, 74. 14, 73. 91, 73. 57, 73. 08, 71. 37, 69. 75, 65. 43, 57. 4 5, 54. 71, 53. 79, 24. 62, 22. 07, 22. 00 ;ESI MS:m/z 对[C31H37N016+Na]+的计算值:702. 2005, 观察值702. 2027.
[0171] 2-炔丙基0-(钠 -β -D-吡喃葡萄糖醛酸酯)-(1 - 3)-4-0-钠磺酸根 合-2-脱氧-2-乙酰胺基-β-D-吡喃半乳糖苷9:向化合物8(0.020g,0.029mmol)在 无水DMF(1. 5mL)中的溶液加入三氧化硫三甲胺复合物(SO3 · TMA) (0. 025g,0. 180mmol) 。将反应混合物在50°C搅拌36hr,然后将其冷却至室温。产物在S印hadex LH-20(50 % MeOH = CH2Cl2)上纯化,然后通过硅胶色谱(5%- 10% MeOH = CH2Cl2)纯化得到为白色 固体的硫酸化二糖(〇.〇16g,73 %)。Rf=(Xisao^MeOH = CH2Cl2)-1H NMR (400MHz, 1: 4.5:4.5CDC13:CD30D:CD2C1 2,含有0.05%¥八丁]\^):58.16-8.12(111,2!1,八也),7.69-7. 65 (m, 1H, ArH), 7. 56 - 7. 52 (m, 2H, ArH), 5. 40 (t, J = 9. 6Hz, 1H, H-3), 5. 27 (t, J = 9. 8Hz, 1H, H-4), 5· 21 (t, J = 9. 5Hz, 1H, H-2), 4· 98 (d, J = I. 9Hz, 1H, H-4'),4· 91 (d, J = 8.1Hz,lH,H-l'),4.89(d,J = 8.8Hz,lH,H-l),4.79 - 4.69(m,2H,H-6',H-6'),4.42- 4. 40 (m, 2H, CH2-C = C), 4. 30 - 4. 21 (m, 2H, H-5, H-3'), 4. 10 - 4. 05 (m, 1H, H-5'), 3. 94 -3. 86 (m, 1H, H-2'), 3. 81 (s, 3H, OCH3), 2. 63 (t, J = 2. 32Hz, 1H, C = CH), 2. 17 (s, 3H, NHC (0) CH3), 2. 12 (s, 3H, C(O)CH3), 2. 09 (s, 3H, C(O)CH3), 2. 08 (s, 3H, C(O)CH3) ;13C NMR (100MHz, CD3 0D) : δ 174. 34, 172. 73, 172. 14, 172. 04, 170. 77, 168. 57, 135. 01, 131. 83, 131. 48, 130. 27, I 02. 79, 99. 91, 80. 39, 79. 57, 78. 96, 76. 83, 74. 07, 73. 72, 73. 68, 72. 92, 71. 29, 66. 02, 57. 33 ,55. 61, 55. 53, 55. 34, 55. 07, 54. 98, 53. 92, 51. 17, 50. 95, 50. 74, 50. 53, 24. 56, 22. 25, 22. 0 7, 22. 01 ;ESI MS:m/z 对[C31H37N019S+Na]+的计算值:782. 1573,观察值 782. 1588。
[0172] 硫酸化的化合物(160mg, (λ 211mmol)溶解在 THF(
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