CN105037331A - 瑞舒伐他汀中间体的制备方法 - Google Patents

瑞舒伐他汀中间体的制备方法 Download PDF

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CN105037331A
CN105037331A CN201510339081.2A CN201510339081A CN105037331A CN 105037331 A CN105037331 A CN 105037331A CN 201510339081 A CN201510339081 A CN 201510339081A CN 105037331 A CN105037331 A CN 105037331A
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蒋成君
王志华
黄�俊
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Zhejiang Le Pu pharmaceutical Limited by Share Ltd
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Zhejiang Lover Health Science and Technology Development Co Ltd
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    • C07D405/00Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
    • C07D405/02Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
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Abstract

本发明公开了一种瑞舒伐他汀中间体?[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯的制备方法。将[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(Z)-6-庚烯酸叔丁酯加入到溶剂中;加入碘,升温到30~50℃,反应10~24小时,反应结束后,减压浓缩得到产物。该方法以生产[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯时的副产物[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(Z)-6-庚烯酸叔丁酯为原料,价格低廉,反应条件温和,环境友好,可以用于工业化大生产。

Description

瑞舒伐他汀中间体的制备方法
技术领域
本发明涉及瑞舒伐他汀中间体的制备方法,尤其涉及一种[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯的制备方法。
背景技术
[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯是合成瑞舒伐他汀的关键中间体(CurrentOrganicChemistry,2010,14,816-845)。[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯的制备工艺有众多的文献和专利进行报道。WO2014108795通过式1的方法合成了[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯。
式1
此方法原料难得。CN103613582以氟苯甲醛、异丁酰乙酸甲酯、尿素、氯化亚铜为原料,经缩合、氧化、还原、取代等一系列反应之后得到最终产品瑞舒伐他汀内酯。CN103420919通过式2的方法合成[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯
式2
CN103113356通过式2的方法合成[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯。
式3
Anon等(IP.comJournal,12(10A),33;2012)以式4的方法合成了[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯。
式4
IN2009MU03028以式5的方法合成了[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯。
式5
CN102617481以式6的方法合成了[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯。
式6
IN2012CH02127以式7的方法合成了[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯。
式7
WO2011132172以式8的方法合成了[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯。
式8
WO2011083495以式9的方法合成了[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯。
式9
WO2007125547以式10的方法合成了[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨
基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯。
式10
上述方法反应条件苛刻,操作过程复杂。
发明内容
本发明的目的是克服现有技术的不足,提供一种[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯的制备方法
本发明的技术方案如下:
一种[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯的制备方法
包括如下步骤:
一种[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯的制备方法,其特征在于包括如下步骤:
将[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(Z)-6-庚烯酸叔丁酯加入到溶剂中,溶剂的用量为[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(Z)-6-庚烯酸叔丁酯质量的10-20倍;加入碘,碘用量为[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(Z)-6-庚烯酸叔丁酯质量的0.1-0.5%;升温到30~50℃,反应10~24小时,反应结束后,减压浓缩得到[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯。
所述的溶剂为甲醇、乙醇、四氢呋喃。
该方法以生产[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯时的副产物[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(Z)-6-庚烯酸叔丁酯为原料,价格低廉,反应条件温和,环境友好,可以用于工业化大生产。
具体实施方式
本发明反应方程式如下:
将[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(Z)-6-庚烯酸叔丁酯加入到溶剂中,溶剂的用量为[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(Z)-6-庚烯酸叔丁酯质量的10-20倍;加入碘,碘用量为[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(Z)-6-庚烯酸叔丁酯质量的0.1-0.5%;升温到30~50℃,反应10~24小时,反应结束后,减压浓缩得到[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯。
所述的溶剂为甲醇、乙醇、四氢呋喃。
实施例1
在1000ml的三口瓶中,装上温度计和恒压滴液漏斗和磁力搅拌。常温下,在反应瓶中加入甲醇500.0克,再加入[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(Z)-6-庚烯酸叔丁酯25.0克,碘0.125克,升温到50℃,反应10小时,反应结束后,减压浓缩得到[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯,48.0克,收率96.0%。
1HNMR(300MHz,CDCl3):δ1.16-1.56(23H,m),2.27(1H,dd,J=15.29,6.28Hz),2.43(1H,dd,J=15.36,6.88Hz),3.36(1H,m),3.50(3H,s),3.55(3H,s),4.40(1H,m),4.42(1H,m),5.45(1H,dd,J=16.27,5.41Hz),6.50(1H,dd,J=14.96Hz),7.06(2H,m),7.63(2H,m)。MS(ESI):578.6(M+1)。
实施例2
在1000ml的三口瓶中,装上温度计和恒压滴液漏斗和磁力搅拌。常温下,在反应瓶中加入乙醇500.0克,再加入[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(Z)-6-庚烯酸叔丁酯50.0克,碘0.05克,升温到30℃,反应24小时,反应结束后,减压浓缩得到[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯,23.1克,收率92.4%。
实施例3
在1000ml的三口瓶中,装上温度计和恒压滴液漏斗和磁力搅拌。常温下,在反应瓶中加入四氢呋喃500.0克,再加入[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(Z)-6-庚烯酸叔丁酯40.0克,碘0.08克,升温到40℃,反应18小时,反应结束后,减压浓缩得到[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯,38.5克,收率96.3%。

Claims (2)

1.一种[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯的制备方法,其特征在于包括如下步骤:
将[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(Z)-6-庚烯酸叔丁酯加入到溶剂中,溶剂的用量为[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(Z)-6-庚烯酸叔丁酯质量的10-20倍;加入碘,碘用量为[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(Z)-6-庚烯酸叔丁酯质量的0.1-0.5%;升温到30~50℃,反应10~24小时,反应结束后,减压浓缩得到[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯。
2.根据权利要求1所述的一种[(4-氟苯基)-6-异丙基-2-(N-甲基-N-磺酰基氨基)-嘧啶-苯并呋喃-5-基]-(3R)-3-(叔丁基二甲基硅烷)-5-氧代-(E)-6-庚烯酸叔丁酯的制备方法,其特征在于所述的溶剂为甲醇、乙醇、四氢呋喃。
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