CN1425019A - 维生素d前体,及其制备方法与中间体 - Google Patents

维生素d前体,及其制备方法与中间体 Download PDF

Info

Publication number
CN1425019A
CN1425019A CN00818498A CN00818498A CN1425019A CN 1425019 A CN1425019 A CN 1425019A CN 00818498 A CN00818498 A CN 00818498A CN 00818498 A CN00818498 A CN 00818498A CN 1425019 A CN1425019 A CN 1425019A
Authority
CN
China
Prior art keywords
cooch
alkyl
group
tbdps
compound
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN00818498A
Other languages
English (en)
Other versions
CN1210282C (zh
Inventor
让-克劳德·帕斯卡尔
莫里茨·范德沃尔
菲利普·梅洛斯
皮埃尔·德克拉克
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Laboratoire Theramex SAM
Original Assignee
Laboratoire Theramex SAM
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Laboratoire Theramex SAM filed Critical Laboratoire Theramex SAM
Publication of CN1425019A publication Critical patent/CN1425019A/zh
Application granted granted Critical
Publication of CN1210282C publication Critical patent/CN1210282C/zh
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/02Silicon compounds
    • C07F7/08Compounds having one or more C—Si linkages
    • C07F7/18Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
    • C07F7/1804Compounds having Si-O-C linkages
    • C07F7/1872Preparation; Treatments not provided for in C07F7/20
    • C07F7/1892Preparation; Treatments not provided for in C07F7/20 by reactions not provided for in C07F7/1876 - C07F7/1888
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/36Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring increasing the number of carbon atoms by reactions with formation of hydroxy groups, which may occur via intermediates being derivatives of hydroxy, e.g. O-metal
    • C07C29/38Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring increasing the number of carbon atoms by reactions with formation of hydroxy groups, which may occur via intermediates being derivatives of hydroxy, e.g. O-metal by reaction with aldehydes or ketones
    • C07C29/40Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring increasing the number of carbon atoms by reactions with formation of hydroxy groups, which may occur via intermediates being derivatives of hydroxy, e.g. O-metal by reaction with aldehydes or ketones with compounds containing carbon-to-metal bonds
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/76Esters of carboxylic acids having a carboxyl group bound to a carbon atom of a six-membered aromatic ring
    • C07C69/78Benzoic acid esters
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/02Silicon compounds
    • C07F7/08Compounds having one or more C—Si linkages
    • C07F7/18Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
    • C07F7/1804Compounds having Si-O-C linkages
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00Systems containing only non-condensed rings
    • C07C2601/12Systems containing only non-condensed rings with a six-membered ring
    • C07C2601/14The ring being saturated
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2602/00Systems containing two condensed rings
    • C07C2602/02Systems containing two condensed rings the rings having only two atoms in common
    • C07C2602/14All rings being cycloaliphatic
    • C07C2602/18All rings being cycloaliphatic the ring system containing six carbon atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2602/00Systems containing two condensed rings
    • C07C2602/36Systems containing two condensed rings the rings having more than two atoms in common
    • C07C2602/40Systems containing two condensed rings the rings having more than two atoms in common the bicyclo ring system containing six carbon atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Catalysts (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Cephalosporin Compounds (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

本发明涉及式(I)的A-环维生素D的前体,其中A,R,R1和R2是如说明书中的定义。本发明也涉及制备化合物(I)的方法,包括3,5-二羟基苯甲酸衍生物的酶促不对称反应,以及还涉及制备该化合物的中间体。

Description

维生素D前体,及其制备 方法与中间体
本发明揭示可有效用于合成19-去甲-维生素D类似物的前体,以及有关其制备方法和其中间体。更具体地说,本发明是有关该维生素D的A环的类似物的前体,其A环以如下结构表示
Figure A0081849800061
(例如参见Mazur等人的Tetrahedron Letters 1995,2987)。
双环[3.1.0]己烷衍生物(是19-去甲-A环前体)的合成是从M.Vandewalle等人(Tetrahedron Letters,1995,36(45),8299-8320)的(-)-奎尼酸或环己烷-三醇开发的,并且它以已知的环丙醇的迁移重排成高烯丙醇为基础。天然维生素D中此一重排的可能性已首先被Mazur等人(如上文)所证实。自2,4-戊烷-二酮的另一合成方法也有报导(S.Z.Zhou,S.Anne.M.Vandewalle,Tetrahedron Letters,1996,37(42),7637-7640)。也可使用3-环戊烯醇作为制备用的前体(W.Yong,M.Vandewalle;Synlett,1996,9,911-912)。
然而这些方法具有以下缺点:
-从(-)-奎尼酸开始的制法涉及基团的脱氧作用,难以大量控制,并要用有毒的三丁基锡氢化物;
-从环己烷三醇的方法要经过很多步骤(12),并需经历两个酶促反应;
-原料3-环戊烯醇不是市面上可得的。该原料必需从环戊二烯经过一低产率(30%)的氢硼化反应步骤而制得;而且环丙烷化反应和甲酰基的引入都是很麻烦的。
-从2,4-戊烷二酮开始的合成方法(10步骤)在制备双环氧化物中间体第一步的产率低。再者,由于其分子量低,某些中间体易挥发并且难以用大规模方法加以纯化。
现已发现,一种宽范围的19-去甲-A环前体可从3,5-二羟基苯甲酸衍生物或其4-烷基取代的同系物而制得。这些前体可由较以前已公开的更为有效的方法进行大规模制备。
因此,本发明的第一个特征是有关式(I)化合物的制备方法:
Figure A0081849800071
其中:-A为基团-CH2OH,-CH2-OCOR′,-COR″,-CSR″或乙炔基;-R为氢或(C1-C6)烷基;-R1为氢,(C1-C6)烷基或基团-(CH2)n-OP;-R2为氢或基团-OP;-R′为(C1-C6)烷基或苯基;-R″为氢,羟基,(C1-C6)烷基,(C1-C6)烷氧基,(C1-C6)烷硫基,或二(C1-C3)烷氨基;-P为氢;(C1-C6)烷酰基;苯甲酰基,其中苯基可被(C1-C4)烷基,卤素或硝基任选取代;(C1-C6)烷氧基羰基;基团-Si(R3)3,其中每一R3各自代表(C1-C6)烷基或苯基;单-或二-(C1-C6)烷氧基(C1-C6)烷基;四氢呋喃基;或四氢吡喃基;-n为0,1,2,3或4,优选为0或1,此方法包含以下步骤(i)式1化合物与脂酶在链烷酸乙烯酯或酸酐中反应,
Figure A0081849800072
其中A为(C1-C6)烷氧羰基,优选为甲氧羰基,或二(C1-C3)烷基胺基羰基且R是如上定义,和(ii)所得式2或2′化合物转化为相应的式(I)化合物其中Z为烷基,例如(C1-C6)烷基,优选为(C1-C3)烷基。
如一般流程1所示,制备该A环前体的起始物是由氢化甲基3,5-二羟基苯甲酸或其酯或氢化它们的4-烷基取代的同系物,接着进行P.Wang和J.Adams于J Am Chem Soc 1994,116,3296-3305中所述的修饰程序而得。
第一步骤包括1-烷氧基(或二烷基氨基)羰基-3,5-二羟基-环己烷或其4-烷基取代同系物的酶催化不对称反应,该反应是在溶剂(例如链烷酸乙烯酯,如乙酸乙烯酯,丙酸乙烯酯或丁酸乙烯酯)或酸酐(如乙酸酐,丙酸酐或丁酸酐)中进行,并使用脂酶如SAM II(来自萤光假单孢菌的脂酶)、CCL(来自希林瓜氏念珠菌的脂酶)、PPL(来自猪胰腺的脂酶),PSL(来自葱头假单孢菌的脂酶)、GCL(来自Gotrichum candidum的脂酶),温度介于10和40℃间,优选为20℃,反应持续6到72小时,获得相应的(1S,3S,5R)-3-烷基羰基氧-5-羟基或(1S,3S,4R,5R)-4-烷基-3-烷基羰基氧-5-羟基-环己烷羧酸烷酯或二烷酯(或羧酰胺)2,或相应的(1S,3S,5R)-5-烷基羰基氧-3-羟基或(1S,3S,4R,5R)-4-烷基-5-烷基羰基氧-3-羟基-环己烷羧酸烷酯(或二烷酯)(或羧酰胺)2′。
不对称反应也可使用一种适当的酶经过二酯3的对映异构选择性酶催化水解作用而发生于相同家族的化合物上。
流程2和3说明从流程1所述化合物2和2′合成R1-H且R2=OP的通式(I)的所有非对映异构体的方法。
如这些流程图中所示,化合物2或2′转换为化合物(I)是经一个或数个下列步骤而进行,这些步骤可以按不同次序部分地或全部进行,此次序视最终非对映异构体而改变:(1)羟基(例如P=TBDMS,TBDPS)的保护,(2)酯的皂化,(3)3或5-羟基的转化,(4)离去基(例如L=OTos,OBros,OMs)的形成,(5)含碱环的闭环生成所需双环[3.1.0]己烷,(6)烷氧羰基或氨基甲酰官能基(A)转变为所需的取代基A。
步骤(2)和(4)是本领域技术人员已知的传统反应。步骤(1)可根据J.AmChem.Soc.1972,94,6190或“有机合成中的保护基团”[(Protective groups inOrganic Synthesis),T.W.Greene,John Wiley Sons,纽约]所述的方法而进行。步骤(3)可根据合成(Synthesis)1981,1,或由两步法(消除、氢硼化反应)进行。步骤(5)可根据Tetrahedron Letters,1995,36(45),8299-8320进行。步骤(6)可根据J.Gen.Chem.USSR 1964,34,1021进行。
流程图2具体描述了具有3aS构型(α定向的环丙基环)的所有非对映异构体的合成方法。
流程图3具体描述了具有3aR构型(β定向的环丙基环)的所有非对映异构体的合成方法。
如一般流程图4所示,R=H且A=CH2OH的3a羟甲基取代的双环[3.1.0]己烷化合物(I)也可用于C-1上修饰的维生素D类似物的A环前体的合成中。此可能性可从式I.a(R=H,P=TBDPS,A=CH2OH)经主要中间体酮4.2来作为例证。格利雅反应(例如R1=Me或Et)会使叔醇I.i具有非对映异构选择性,同时伴随除去官能保护基。另一方面,4.2亚甲基化获得4.3。利用Lombardo过程(Tetrahedron Lett.,1982,23,4293)可得最佳结果(产率为68%)。或者,Wittig或Tebbe反应(J.Org.Chem.,1985,50,1212)分别获得39%和54%的产率。
4.3的二羟基化反应获得作为主产物的预期的二醇I.m.,并得到其差向异构体4.4(比例为85∶15,未有显示)。另一方面,4.3的氢硼化反应可得到比例为75∶25(73%)的2R和2S羟甲基化合物。TBDPS醚形成(81%)并接着酯水解(81%)之后,分离这些差向异构的醇可得到I.i和I.k。乙醇汞在4.3中加水导致形成叔醇I.1,和I.i,两者比例为75∶25。
由3,5-二羟基苯甲酸衍生物制备19-去甲-A环前体的这一新方法与先前所述方法相比时间最短。上述该路线在实践中的重要性主要在于大部分中间体是结晶,并且通过结晶加以纯化,这与用硅胶层析的传统纯化方法相比容易进行大规模作业,并能保证获得高纯度的对映体。反应流程1反应流程2
Figure A0081849800111
反应流程3反应流程4
由此制得的所有化合物(I)均是新的,除了那些其中A为甲酰基、羟甲基、乙炔基或甲氧羰基,R和R2均为氢且R1为基团-OSi(R3)3的2S,3aS,4aS构型之外。
这些新颖化合物因而代表本发明的另一特征。优选的化合物(I)包括如下化合物
-A为基团-CH2OH,-CH2OCOR′,-COR″或乙炔基;
-R1为(C1-C6)烷基或基团-(CH2)n-OP;
-R′为苯基;
-R″为氢,
-P为氢或基团-Si(R3)3
-n为0或1。
化合物(I)可根据例如Tetrahedron Letters,1996;37(42):7637-7640中所述的下列流程来合成维生素D(19-去甲,1α,25(OH)2-D3):
Figure A0081849800141
本发明进一步涉及制备化合物(I)的中间体。本发明特别涉及式(II)的非对映异构化合物:
Figure A0081849800142
其中:-A和R是如上定义-R4和R5每一各自代表定义如上的P基团或甲磺酰基,甲苯磺酰基,对溴苯磺酰基或三氟甲磺酰基,其条件为当A为甲氧羰基且R为氢时,化合物(II)的构型不为1R,3R,5R。
在本发明范围内的还有式2或2′的化合物
Figure A0081849800151
其中:
-A和R是如上定义;
-Z为烷基,以及式1化合物
其中A是如上定义且R为(C1-C6)烷基。
本说明书和所附权利要求中,术语“(C1-C3)烷基”,(C1-C4)烷基”或“(C1-C6)烷基”意指具有1到3个(或4或6个)碳原子的直链或支链的烃链,例如甲基,乙基,丙基,异丙基,丁基,异丁基,叔-丁基,戊基,异戊基或己基。
术语“(C1-C6)烷氧基”或“(C1-C6)烷硫基”分别意指OR或SR基团,其中R为如上定义的(C1-C6)烷基。
本发明现通过下列制备例和实施例加以说明。
                     式1中间体的制备
a)顺式,顺式-3,5-二羟基-1-(甲氧羰基)环己烷:
1.A(R=H,A-COOCH3)。
在Peng Wang和Julian Adams于J.Am.Chem.Soc.1994,116,3296-3305中所述氢化3,5-二羟基苯甲酸的类似条件下,于MeOH中氢化3,5-二羟基苯甲酸甲酯。
将在含0.1%AcOH的MeOH(400毫升)中的3,5-二羟基苯甲酸甲酯(57.6克,0.629摩尔,97%),5%Rh/Al2OH3(5.76克)加入高压釜(1升)中。向该高压釜两次通入氢(130大气压至40大气压)。氢压达130大气压且温度上升至80-85℃。温度上升过程中,氢压下降。当压力降至90大气压时,氢压将再回到130大气压。氢化作用于80-85℃及130大气压下进行12小时,然后温度上升至150℃,并且相应压力会达约155大气压。反应持续36小时。滤掉催化剂。浓缩滤液,自EtOAc/异辛烷中结晶出残余物,得1.A(31.1克,产率为50%)。
烷点:135.9℃;
UV(EtOH):211.4纳米(ε=90.9);
IR(KBr):3284,1734,1259,1015厘米-1
1H-NMR(DMSO-d6);δ1.13(3H,m);2.06(3H,m);2.30(1H,m);3.47(2H,m);3.61(3H,s);4.70(2H,d)ppm。
同样如上所述,但以如下化合物代替3,5-二羟基苯甲酸甲酯:
-3,5-二羟基-4-甲基苯甲酸甲酯或
-3,5-二羟基-4-乙基苯甲酸甲酯,
获得下列化合物:
-全-顺式-3,5-二羟基-4-甲基-环己烷羧酸甲酯:1.B(R-Me,A=COOCH3)
熔点:123℃;
1H-NMR(500MHz,CD3OD):δ3.698(2H,dt,J=4.0,12.0Hz);3.666(3H,s);2.40(2H,tt,J=4.0,13.0Hz);2.23(1H,m);(2H,dt,J=4.0,13.0Hz);1.54(2H,q,J=13.0Hz);0.88(3H,d,J=7.08Hz)ppm。
-全-顺式-4-乙基-3,5-二羟基-环己烷羧酸甲酯:1.C(R-Et,A=COOCH3)
熔点:94-96℃;
1H-NMR(500 MHz,MeOD):δ3.72(2H,dt,J=10.9.,4.1Hz);3.66(3H,s);2.42(1H,m),1.86(1H,bs),1.79(2H,dt,J=12.8,4.1Hz),1.59(2H,d,J=9.0Hz),1.46(2H,m),1.02(3H,t,J=7.5Hz)ppm。式2和2′的中间体的制备(流程1) I)通式(I)的二醇的酶促酯化反应
Ia)(1S,3S,5R)-3-乙酰氧基-5-羟基-环己烷羧酸甲酯:
2.A(R=H,Z=Me,A=COOCH3)。
将顺式,顺式-3,5-二羟基-环己烷羧酸甲酯1.A(R=H,A=COOCH3)(15.2克,87毫摩尔)和来自猪胰腺的脂酶(PPL-16.8U/毫克,9.1 2克)放入一圆底烧瓶中,接着于室温下添加乙酸乙烯酯(450毫升)。用氮冲洗烧瓶。黑暗中搅拌该悬浮液22小时,然后经硅藻土垫片过滤除去脂酶。蒸发浓缩滤液。残余物通过硅胶垫片(70-200筛目,45克)过滤分离。用甲苯(210毫升)洗脱,接着用甲苯/乙酸乙酯75/25(体积/体积,210毫升)的混合物,再用50/50(体积/体积,210毫升),最后用乙酸乙酯(240毫升)洗脱,浓缩后得到2.A黄色油(R=H,Z=Me,A=COOCH3)(22.3克,定量产率)。1R(薄膜):3447,1734,1243厘米-11H.NMR(CDCl3):δ1.4(3H,m),2.1(3H,s),2.3(5H,m),3.7(3H,s),3.75(1H,m),4.7(1H,m)ppm;[α]D25:+22.4(c=1.25,CHCl3)。Ib)(1R,3S,4S,5R)-5-乙酰氧基-3-羟基-4-乙基环己烷羧酸甲酯:2′.B(R=Me,Z=Me,A=COOCH3)及(1R,3S,4S,5R)-5-乙酰氧基-3-羟基-4-乙基环己烷羧酸甲酯:2′.C(R=Et,Z=Me,A=COOCH3)。以I.a所述的类似方法,但以分别来自如下的SAM II,PSL或CCL代替PPL;
-全顺式-3,5-二羟基-4-甲基-环己烷羧酸甲酯:1.B(R=Me,A=COOCH3)
-全顺式二羟基-4-乙基-3,5-环己烷羧酸甲酯:1.C(R=Et,A=COOCH3),获得下列化合物:
-(1R,3S,4S,5R)-5-乙酰氧基-3-羟基4-甲基-环己烷-羧酸甲酯:2′B(R=Me,Z=Me,A=COOCH3):IR(薄膜):3434,1731,1439,1243,1027厘米-11H-NMR(500MHz,CDCl3):δ4.84(1H,dt,J=4.3,4.3Hz);3.82(1H,m);3.69(3H,s);2.45(1H,m);2.32(1H,d,J=6.4Hz);2.05(3H,s);1.92(2H,dt,J=4.0,4.0Hz);1.77(3H,m);0.96(3H,d,J=7.0Hz)ppm;MS(m/z):231(M+,1);213;199;186;170;152;127;111;83;87;67;43(基峰);[α]D21:-22.7(c=0.38,CHCl3)。
-(1R,3S,4S,5R)-5-乙酰氧基-4-乙基-3-羟基-环己烷羧酸甲酯:2′.C(R=Et,Z=Me,A=COOCH3):IR(薄膜):3421,2958,2360,1733,1437,1239,1027,739厘米-1 1H-NMR(500MHz,CDCl3):δ4.98(1H,t,J=4.1Hz);3.87(1H,m),3.69(3H,s),2.60(1H,bs),2.16(2H,m),2.02(3H,s),1.84(2H,m),1.72(1H,bs),1.59(2H,m),1.47(1H,m),0.97(3H,t,J=7.5Hz)ppm;MS(m/z):245(M++1);233;206;184;166;141;125;111;95,87,57,43(基峰)。[α]D25:-50.2(c=1.08,CHCl3)。
II)化学式3的二酯的酶促皂化作用
IIa)(1R,3S,4S,5R)-3-乙酰氧基-5-羟基-环己烷-羧酸甲酯:2.A(R=H,Z=Me,A=COOCH3):
将27.0毫升,pH=7.0的缓冲液加到溶于3.0毫升CH3CN的内消旋-二乙酸酯3.A(R=H,Z=Me,A=COOCH3)(92.1毫克,0.36毫摩尔)溶液中,接着添加SAM II(13.8毫克,46.8U/毫克)。室温下搅拌所得混合物,并计量添加1.0MNaOH溶液维持pH为7.0。以TLC分析监控该反应。加NaCl使该反应溶液饱和以终止该反应。用AcOEt(3×50毫升)萃取该反应混合物。合并的有机萃取物用盐水(3×10毫升)清洗,用MgSO4干燥,并浓缩。残余物用异辛烷/EtOAc(6∶4)洗脱,用HPLC纯化,得到单乙酸酯2.A无色油(R=H,Z=Me,A=COOCH3)(30.1毫克,38.9%)。
IIb)(1S,3R,4R,5S)-3-丁酰氧基-5-羟基-4-甲基-环己烷-羧酸甲酯:2B(R=Me,Z=n-C3H7,A=COOCH3)。
室温下,将丁酸酐(538微升,3.29毫摩尔)加到溶于2毫升CH2Cl2中的1.B(R=Me,A=COOCH3)(0.2克,1.10毫摩尔)溶液中,并接着加入TMSoTf(三甲基甲硅烷基三氟化物)(25微升,1M)溶液中。室温下搅拌该混合物30分钟。并接着添加2.5毫升的MeOH,再搅拌该混合物2小时,用5%的NaHCO3骤冷。反应溶液用盐水(3×20毫升)清洗,用MgSO4干燥并浓缩,得一残余物。该残余物用异辛烷AcOEt(9∶1)洗脱,于硅胶上进行层析纯化,得到无色油二丁酸酯3.B(R=Me,Z-正-C3H7,A=COOCH3)(3.9克,98.8%)。将22.0毫升的缓冲液(pH=7.0)加到溶于2.0毫升CH3CN的内消旋-二酯(110毫克,0.34毫摩尔)溶液中,接着添加SAM II(37毫克,46.8U/毫克)。室温下搅拌所得混合物,并计量添加1.0M NaOH溶液以维持pH为7.0。TLC分析监控该反应。将NaCl加入该反应溶液中以终止该反应。反应混合物用EtOAc(3×50毫升)萃取,用MgSO4干燥,并浓缩,得到残余物。残余物用异辛烷:/EtOAc(7∶3)洗脱,用HPLC纯化,得到无色油状单丁酸酯2.B(R=Me,Z=正-C3H7,A=COOCH3)(78毫克,90%)。IR(薄膜):3495,2964,2878,1731,1438,1281,1183,990厘米-11H-NMR(CDCl3):4.83(1H,dt),3.83(1H,m),3.68(3H,s),2.45(1H,m),2.32(1H,m),2.28(2H,t,J=7.9Hz),1.91(2H,m),1.82-1.62(5H,m),0.95(6H,m)。[α]D 25:+16.2(c=2.09,CHCl3)。MS:259(M++1),227,214,187,170,152,127,111,93,71,43
IIc)(1S,3S,4S,5R)-3-乙酰氧基-5-羟基-4-甲基-环己烷羧酸甲酯:2.C(R=Me,Z=Me,A=COOCH3)从内消旋-二乙酸酯3.C(R=Me,Z=Me,A=COOCH3)得到,如IIa)。[α]D 25:+20(c=2.9,CHCl3)
IId)(1R,3S,4S,5R)-5-乙酰氧基-3-羟基-4-甲基-环己烷羧酸甲酯:2.′B(R=Me,Z=Me,A=COOCH3)从内消旋-二乙酸酯3.C(R=Me,Z=Me,A=COOCH3)得到,如IIa)所述,但用PPL作为脂酶。[α]D 25:-19.5(c=2.88,CHCl3)实施例1:(2S,3aS,4aS)-2-叔丁基二甲基甲硅烷基氧-3a-甲酯基-双环[3.1.0]己烷:I.b.1(A=COOCH3,R=H,P=TBDMS)。a)(1R,3S,5R)-3-乙酰氧基-5-甲苯磺酰基氧-环己烷羧酸甲酯:2.4.a(R=H,L=OTos,A=COOCH3)。
将对-甲苯磺酰氯(13.3克,7.0毫摩尔)加到0℃下溶于三乙胺(50毫升)和二氯甲烷(10毫升)混合物中的(1S,3S,5R)-3-乙酰基氧-5-羟基-环己烷羧酸甲酸2.A(R=H,Z=Me,A=COOCH3)(10.1克,43.7毫摩尔)和二甲氨基-吡啶(0.1克)的溶液中。0℃下搅拌该溶液1小时,接着于室温下搅拌22小时。反应用水(300毫升)骤冷,并用二氯甲烷萃取。有机层用水清洗,用MgSO4干燥,过滤并浓缩。粗产物从EtOH中结晶,得到2.4a(R=H,L=OTos,A=COOCH3)(13.2克,81.6%)。熔点83.1℃;IR(KBr):1734,1175厘米-11H-NMR(CDCl3):δ1.5(3H,m),2.0(3H,s),2.28(4H,m),2.47(3H,s),3.68(3H,s),4.4(1H,m),4.68(1H,m),7.35(1H,d,J=8.5Hz),7.8(2H,d,J=8.5Hz)ppm。b)(1R,3S,5R)-3-羟基-5-甲苯磺酰基氧-环己烷羧酸甲酯:2.5.a(R=H,L=OTos,A=COOCH3)。
将碳酸钾(4.36克,31毫摩尔)加到在MeOH中2.4a(R=H,L=OTos,A=COOCH3)(23.35克,63毫摩尔)的悬浮液中。搅拌悬浮液30分钟,并将其倾入水(1.5升)中。沉淀物被滤出并干燥,得到2.5.a(R=H,L=OTos,A=COOCH3)(18.5克,89%)。熔点:98.4℃;UV(EtOH):225纳米(ε=11935);IR(KBr):3447,1719,1176厘米-11H-NMR(CDCl3):δ1.52(4H,m),2.25(4H,m),2.45(3H,Ss),3.6(1H,m),3.68(3H,s),4.42(1H,m),7.35(2H,d,J=8.5Hz),7.8(2H,d,J=8.5Hz)ppm;[α]D25:-19(c=1.00,EtOH)。c)(1R,3S,5R)-3-苯酰基氧-5-甲苯磺酰基氧-环己烷羧酸甲酯:2.6.a(R=H,L=OTos,A=COOCH3)。
将二乙基偶氮二羧酸酯(11毫升,70毫摩尔)加到0℃下溶于甲苯(180毫升)和THF(70毫升)的2.5a(R=H,L=OTos,A=COOCH3)(18.35克,56毫摩尔)、三苯基膦(18.4克,70毫摩尔)和苯甲酸(8.53克,70毫摩尔)溶液中。室温下搅拌该混合物30分钟,添加庚烷(735毫升)后,将其过滤,并浓缩滤液。将甲苯加到粗产物中,并透过一硅胶垫片(30-70筛目)过滤溶液。用甲苯,再用甲苯/二氯甲烷的混合物洗脱,浓缩后得到残余物,将其从EtOH中结晶后得2.6.a(R=H,L=OTos,A=COOCH3)(19.77克,82%)。熔点:76.2℃;UV(EtOH):227纳米(ε=20840);IR(KBr):1709,1177厘米-11H-NMR(CDCl3):δ1.7(3H,m),2.14(2H,m),2.35(3H,s),2.48(1H,m),2.83(1H,m),3.18(3H,s),4.75(1H,m),5.43(1H,m),7.2(2H,d,J=11.4Hz),7.5(2H,d,J=8.5Hz),7.6(1H,m),7.75(2H,d,J=11.4Hz),7.94(2H,d,J=8.5Hz)ppm;[α]D 25:-65.8(c=0.98,EtOH)。d)(1R,3R,5R)-3-羟基-5-甲苯磺酰基氧-环己烷羧酸甲酯:2.7.a(R=H,L=OTos,A=COOCH3)。
将碳酸钾(3.16克,22.9毫摩尔)加到溶于MeOH(260毫升)的2.6.a(R=H,L=OTos,A=COOCH3)(19.77克,46毫摩尔)的悬浮液中。室温下搅拌该混合物6小时,并将其倾入水(1升)中。水层用二异丙基氧化物萃取,用MgSO4干燥,过滤,并浓缩,得到油状物2.7.a(R=H,L=OTos,A=COOCH3)(17.45克,定量)。UV(EtOH):224纳米(c=12262);IR(KBr):3525,1731,1174厘米-11H-NMR(CDCl3):δ1.67(3H,m),2.1(3H,m),2.45(3H,s),2.85(1H,m),3.7(3H,s),4.3(1H,s),4.82(1H,m),7.35(2H,d,J=8.5Hz),7.8(2H,d,J=8.5Hz)ppm;[α]D 25:-36.7(c=1.06,CHCl3)。e)(1R,3R,5R)-3-叔丁基二甲基甲硅烷基氧-5-甲苯磺酰基氧-环己烷羧酸甲酯:2.8.a(R=H,L=OTos,P=TBDMS,A=COOCH3)。
将叔丁基二甲基甲硅烷基氯化物(8.6克,57毫摩尔)加到溶于无水二甲基甲酰胺(80毫升)的2.7.a(R=H,L=OTos,A=COOCH3)(17.45克,46毫摩尔)和咪唑(3.9克,57毫摩尔)的溶液中。室温下搅拌该混合物1.5小时,然后将其倾入水中,并用甲苯萃取。有机层用水清洗,再予以浓缩。粗产物从庚烷中结晶,得2.8.a(R=H,L=OTos,P=TBDMS,A=COOCH3)(13.94克,69%)。熔点:68.2℃;UV(EtOH):225纳米(ε=12390);IR(KBr):2853,1726,1436,1359,1173,831厘米-11H-NMR(CDCl3):δ0.02(3H,s),0.05(3H,s),0.82(9H,s),1.55(4H,m),1.85(2H,m),2.45(3H,s),2.8(1H,m),3.67(3H,s),4.2(1H,bs),4.7(1H,m),7.33(2H,d,J=8.5 Hz),7.8(2H,d,J=8.5 Hz)ppm;[α]D 25:-41.6(c=1.00,EtOH)。f)(2S,3aS,4aS)-2-叔-丁基二甲基甲硅烷基氧-3a-甲酯基-双环[3.1.0]己烷:I.b.1(R=H,P=TBDMS,A=COOCH3)。
历时1小时,将在叔-丁醇(1.02升)中的叔-丁醇钾的1M溶液加到64℃下溶于叔-丁醇的2.8.a(R=H,L=OTos,P=TBDMS,A=COOCH3)(378.5克,856毫摩尔)的搅拌溶液中。添加完了后5分钟,将该悬浮液冷却至30℃,并添加氯化铵(3升)的饱和溶液。10分钟后,用二异丙基氧化物萃取水相。有机层用水清洗,用MgSO4干燥,过滤并浓缩。用庚烷/乙酸乙酯的混合物作为洗脱溶剂,于硅胶上对残余物进行快速层析,得黄色油I.b.1(R=H,P=TBDMS,A=COOCH3)(211.3克,91.3%)。Eb760:135℃;UV(EtOH):201纳米(ε=742);IR(薄膜)1726厘米-1,1458厘米-1,1437厘米-1,1254厘米-1,837厘米-11H-NMR(CDCl3):δ0.01(6H,s),0.83(9H,s),1.28(2H,m),1.8(2H,m),2.11(3H,m),3.65(3H,s),3.9(1H,m)ppm;[α]D 25:-43(c=1.04,EtOH)。实施例2:(2S,3aS,4aS)-2-叔-丁基二甲基甲硅烷基氧-3a-(羟甲基)-双环[3.1.0]己烷:I.b.2(R=H,P=TBDMS,A=CH2OH)。
历时1.5小时,将溶于甲苯(1.25升)中二异丁基氢化铝的1.5M溶液加到-70℃下溶于甲苯(2.1升)的(2S,3aS,4aS)-2-叔-丁基二甲基甲硅烷基氧-3a-甲酯基-双环[3.1.0]己烷I.b.1(R=H,P=TBDMS,A=COOCH3)(207.5克,768毫摩尔)溶液中。添加完成后,缓缓加入酒石酸钠钾的饱和溶液,并使温度上升至0℃。搅拌2小时后,用甲苯萃取反应混合物,有机层以MgSO4干燥并浓缩,获得142.9克(88%)的黄色油状物标的化合物I.b.2。IR(KBr):3355,1471,1255,835,774厘米-11H-NMR(CDCl3):δ0(6H,s),0.32(1H,m),0.5(1H,m),0.83(9H,s),1.16(1H,m),1.87(5H,m),3.54(2H,m),4.0(1H,m)ppm。实施例3:(2S,3aS,4aS)-2-叔-丁基二甲基甲硅烷基氧-3a-甲酰基-双环[3.1.0]己烷:I.b.3(R=H,P=TBDMS,A=CHO)。
将氯铬酸吡啶鎓(68克,315毫摩尔)加到室温下溶二氯甲烷(700毫升)的I.b.2(R=H,P=TBDMS,A=CH2OH)(69.6克,287毫摩尔)中。剧烈搅拌该反应混合物1小时。温度攀升至35℃,然后降低至25℃。悬浮液透过一硅藻土垫片加以过滤,并用二氯甲烷和二异丙基氧化物清洗。有机层连续用水、碳酸氢钠饱和溶液、和水清洗至pH为6-7。合并的有机层用MgSO4干燥,过滤和浓缩。残余物(66.8克)用庚烷/乙酸乙酯95/5(体积/体积)作为洗脱液,于硅酸镁载体上进行快速层析予以纯化,得黄色油状物I.b.3(R=H,P=TBDMS,A=CHO)(50.33克,73%)。UV(EtOH):204纳米(ε=6292);IR(KBr):1726,1253,1119,838厘米-11H-NMR(CDCl3):δ0(6H,s),0.87(9H,s),1.3(2H,m),1.85(2H,m),2.1(3H,m),4(1H,m),8.9(1H,m)ppm;[α]D 25:-49.4(c=1.06,EtOH)。实施例4:(2S,3aR,4aR)-2-叔-丁基二甲基甲硅烷基氧-3a-甲酯基-双环[3.1.0]己烷:I.h.1(R=H,A=COOCH3,P=TBDMS)。a)(1R,3S,5S)-3-乙酰氧基-5-苯甲酰基氧-环己烷羧酸甲酯:3.9.a(R=H,A=COOCH3)。
如2.6.a(R=H,L=OTos,A=COOCH3)的说明,将(1S,3S,5R)-3-乙酰氧基-5-羟基-环己烷羧酸甲酯2.A(R=H,Z=Me,A=COOCH3)(25克,111.3毫摩尔)转换为(1R,3S,5S)-3-乙酰氧基-5-苯甲酰基氧-环己烷羧酸甲酯:3.9.a(R=H,A=COOCH3)(32.4克,91%)。1H-NMR(CDCl3):δ1.68(3H,m),2.05(3H,s),2.34(3H,m),2.92(1H,m),3.70(3H,s),5.18(1H,m),5.55(1H,m),7.50(3H,m),8.05(2H,m)ppm;[α]D 25:+42.3(c=0.82,CHCl3)。b)(1R,3S,5S)-5-苯甲酰基氧-3-羟基-环己烷羧酸甲酯:3.10.a(R=H,A=COOCH3)。
如2.5.a(R=H,L=OTos,A=COOCH3)所述皂化(1R,3S,5S)-3-乙酰氧基-5-苯甲酰基氧-环己烷羧酸甲酯:3.9.a(R=H,A=COOCH3)(32.4克,151.9毫摩尔)。将该粗产物于硅胶(庚烷/乙酸乙酯5/5)上进行快速层析纯化,得3.10.a(R=H,A=COOCH3)(22.38克,79%)。1H-NMR(CDCl3):δ1.63(4H,m),1.92(1H,s),2.3(2H,m),2.86(1H,m),3.7(3H,s),4.1(1H,m),5.53(1H,m),7.5(3H,m),8.0(2H,m)ppm;[α]D 25:-13.5(c=1.43,CHCl3)。c)(1S,3S,5S)-5-苯甲酰基氧-3-甲苯磺酰基氧-环己烷羧酸甲酯:3.11.a(R=H,L=OTos,A=COOCH3)。
如2.4.a(R=H,L=OTos,A=COOCH3)所述,将醇3.10.a(R=H,A=COOCH3)(25.2克,90.88毫摩尔)进行甲苯磺酰化。快速层析(庚烷/乙酸乙酯7/3)纯化并自庚烷/EtOH中结晶后,得定量产率的标题化合物3.11.a(R=H,L=OTos,A=COOCH3)(39.75克)。熔点:128.4℃;IR(KBr):2950,1715,1175,939厘米-11H-NMR(CDCl3):δ1.7(3H,m),2.18(2H,m),2.38(3H,s),2.5(1H,m),2.85(1H,m),3.68(3H,s),4.76(1H,m),5.43(1H,m),7.19(2H,d),7.5(2H,d),7.58(1H,m),7.77(2H,d),7.96(2H,d)ppm;[α]D 25:+69(c=1.014,CHCl3)。d)(1S,3S,5S)-5-羟基-3-甲苯磺酰基氧-环己烷羧酸甲酯:3.12.a(R=H,L=OTos,A=COOCH3)。
如2.7.a(R=H,L=OTos,A=COOCH3)所述,自3.11.a(R=H,L=OTos,A=COOCH3)(38.25克,88.4毫摩尔),以定量产率获得黄色油状物的(1S,3S,5S)-5-羟基-3-甲苯磺酰基氧-环己烷羧酸甲酯3.12.a(R=H,L=OTos,A=COOCH3)(29.25克)。1H-NMR(CDCl3):δ1.6(4H,m),2.08(3H,m),2.47(3H,s),2.83(1H,m),3.68(3H,s),4.3(1H,m),4.82(1H,m),7.36(2H,d),7.8(2H,d)ppm。e)(1S,3S,5S)-5-叔-丁基二甲基甲硅烷基氧-3-甲苯磺酰基氧-环己烷羧酸甲酯:3.13.a(R=H,L=OTos,P=TBDMS,A=COOCH3)。
如2.8.a(R=H,L=OTos,P=TBDMS,A=COOCH3)所述,自3.12.a(R=H,L=OTos,A=COOCH3)(29.2克,89.07毫摩尔),在硅胶(庚烷/乙酸乙酯8/2)上进行快速层析术加以纯化,得黄色油状物3.13.a(R=H,L=OTos,P=TBDMS,A=COOCH3)(34.8克,88%)。IR(薄膜):2953,2855,1725,1278,1177,949厘米-11H-NMR(CDCl3):δ0(6H,d),0.85(9H,s),1.55(3H,m),1.88(2H,m),2.38(1H,s),2.48(3H,s),2.82(1H,m),3.7(3H,s),4.2(1H,m),4.7(1H,m),7.8(2H,d),8.09(2H,d)ppm;[α]D 25:+29.5(c=1.06,EtOH)。f)(2R,3aR,4aR)-2-叔-丁基二甲基甲硅烷基氧-3a-甲酯基-双环[3.1.0]己烷:I.h.1(R=H,P=TBDMS,A=COOCH3)。
如I.b.1(来自2.8.1)所述,自3.13a(R=H,L=OTos,P=TBDMS,A=COOCH3)(33.2克,75毫摩尔),于硅胶(庚烷/乙酸乙酯95/5)上进行快速层析加以纯化,得黄色油状物I.h.1(2R,3aR,4aR)-2-叔-丁基二甲基甲硅烷基氧基-3a-甲酸酯基-双环[3.1.0]己烷(R=H,P=TBDMS,A=COOCH3)(15.5克,78%)。IR(薄膜):2952,2856,1724,1113,837厘米-11H-NMR(CDCl3):δ0(6H,s),0.85(9H,s),1.11(1H,d),1.27(2H,m),1.6(3H,s),1.8(1H,m),2.11(3H,m),3.65(3H,s),3.9(1H,m)ppm;[α]D 25:+38.3(c=1.122,EtOH)。实施例5:(2R,3aR,4aR)-2-叔-丁基二甲基甲硅烷基氧-3a-(羟甲基)-双环[3.1.0]己烷:I.h.2(R=H,P=TBDMS,A=CH2OH)。
使用I.b.2(R=H,P=TBDMS,A=CH2OH)所述条件,将(2R,3aR,4aR)-2-叔-丁基二甲基甲硅烷基氧-3a-甲酯基-双环[3.1.0]己烷I.h.1(R=H,P=TBDMS,A=COOCH3)(15.15克,56毫摩尔)转换为I.h.2(R=H,P=TBDMS,A=CH2OH)(11.85克,87%)。IR(薄膜):3354,2928,2856,1255,835厘米-11H-NMR(CDCl3):δ0.1(6H,s),0.35(1H,t),0.5(1H,t),0.86(9H,s),1.17(1H,s),1.85(5H,m),3.52(2H,m),4.0(1H,m)ppm;[α]D 25:+17.4(c=1.15,EtOH)。实施例6:(2R,3aR,4aR)-2-叔-丁基二甲基甲硅烷基氧-3a-甲酰基-双环[3.1.0]己烷:I.h.3(R=H,P=TBDMS,A=CHO)。
依照I.b.3(R=H,P=TBDMS,A=CHO)的程序,自I.h.2(R=H,P=TBDMS,A=CH2OH)(11.3克,46.6毫摩尔)获得黄色油状物I.h.3(R=H,P=TBDMS,A=CHO)(6.2克,55%)。UV(EtOH):204.5mm(ε=6600)IR(薄膜):2930,2880,2856,1705,1119,1097,836厘米-11H-NMR(CDCl3):δ0(6H,s),0.83(9H,s),0.95(1H,t),1.22(2H,m),1.85(2H,m),2.1(5H,m),4.0(1H,五重峰),8.87(1H,s)ppm;[α]D 25:+53.6(c=1.008,EtOH)。实施例7:(2R,3aS,4aS)-2-叔-丁基二甲基甲硅烷基氧-3a-甲酯基-双环[3.1.0]己烷:I.a.1(R=H,P=TBDMS,A=COOCH3)。a)(1R,3S,5R)-3-叔-丁基二甲基甲硅烷基氧-5-甲苯磺酰基氧-环己烷羧酸甲酯:2.3.a(R=H,L=OTos,P=TBDMS,A=COOCH3)。
如2.8.a(R=H,L=OTos,P=TBDMS,A=COOCH3)所述,保护(1R,3S,5R)-3-羟基-5-甲苯磺酰基氧-环己烷羧酸甲酯2.5.a(R=H,L=OTos,A=COOCH3)(29.3克,89.2毫摩尔)的羟官能基,获得2.3.a(R=H,L=OTos,P=TBDMS,A=COOCH3)(36.75克,93%)。熔点:70.9℃;IR(KBr):2957,2855,1734,1174,923厘米-11H-NMR(CDCl3):δ0(6H,s),0.82(9H,s),1.41(3H,m),2.16(4H,m),2.46(3H,s),3.54(1H,m),3.69(3H,s),4.41(1H,m),7.34(2H,d),7.8(2H,d)ppm;[α]D 25:-8.2(c=1.2,EtOH)。b)(2R,3aS,4aS)-2-叔-丁基二甲基甲硅烷基氧-3a-甲酯基-双环[3.1.0]己烷:I.a.1(R=H,P=TBDMS,A=COOCH3)。
如I.b.1(R=H,P=TBDMS,A=COOCH3)所述,自2.3.a(R=H,L=OTos,P=TBDMS,A=COOCH3)(34.81克,78.6毫摩尔)于硅胶(庚烷/乙酯乙酯5/5)上进行快速层析加以纯化,得黄色油状物I.a.1(R=H,P=TBDMS,A=COOCH3)(16.6克,78%)。IR(薄膜):2953,2855,1726,1148,836厘米-11H-NMR(CDCl3):δ0(6H,s),0.86(9H,s),1.5(5H,m),2.1(1H,m),2.48(1H,m),3.68(3H,s),4.33(1H,t)ppm;[α]D 25:-60.1(c=0.998,EtOH)。实施例8:(2R,3aS,4aS)-2-叔-丁基二甲基甲硅烷基氧-3a-(羟甲基)-双环[3.1.0]己烷:I.a.2(R=H,P=TBDMS,A=CH2OH)。
如I.b.2(R=H,P=TBDMS,A=CH2OH)所述,自I.a.1(R=H,P=TBDMS,A=CH2OH)(15.6克,57.7毫摩尔)获得黄色油状物I.a.2(R=H,P=TBDMS,A=CH2OH)(11.7克,83.7%)。IR(薄膜):3331,2927,2855,1254,1094,1006,835厘米-11H-NMR(CDCl3):δ0(6H,s),0.5(1H,m),0.88(9H,s),1.19(3H,m),1.72(2H,m),2.1(2H,m),3.6(2H,s),4.34(1H,t)ppm;[α]D 25:-23.5(c=1.062,EtOH)。实施例9:(2R,3aS,4aS)-2-叔-丁基二甲基甲硅烷基氧-3a-甲酰基-双环[3.1.0]己烷:I.a.3(R=H,P=TBDMS,A=CHO)。
如I.b.3(R=H,P=TBDMS,A=CHO)所述,自I.a.2(R=H,P=TBDMS,A=CH2OH)(11.1克,45.5毫摩尔)获得黄色油状物I.a.3(R=H,P=TBDMS,A=CHO)(8.8克,80%)。UV(EtOH):204.7纳米(ε=6991);IR(薄膜):2928,2855,1702,1255,1072,837厘米-11H-NMR(CDCl3):δ0(6H,s),0.85(9H,s),1.45(1H,m),1.78(3H,m),2.02(2H,m),2.5(1H,m),4.35(1H,m),8.81(1H,s)ppm;[α]D 25:-71.8(c=1.406,EtOH)。实施例10:(2R,3aR,4aR)-2-叔-丁基二甲基甲硅烷基氧-3a-甲酯基-双环[3.1.0]己烷:I.f.1(R=H,P=TBDMS,A=COOCH3)。a)(1R,3S,5R)-3-乙酰氧基-5-叔-丁基二甲基甲硅烷基氧-环己烷羧酸甲酯:3.7.a(R=H,P=TBDMS,A=COOCH3)。
如2.8.a(R=H,L=OTos,P=TBDMS,A=COOCH3)所述,将(1S,3S,5R)-3-乙酰氧基-5-羟基-环己烷羧酸甲酯2.A(R=H,A=COOCH3)(45.5克,0.210毫摩尔)的羟官能基甲硅烷基化。以庚烷/乙酯乙酯的混合物作为洗脱溶剂(9/1),于硅胶上进行快速层析加以纯化,得黄色油状物3.7.a(R=H,P=TBDMS,A=COOCH3)(69.97克,92%)。IR(薄膜):2953,2856,1736,1240厘米-11H-NMR(CDCl3):δ0(6H,s),0.8(9H,s),1.33(4H,m),2(3H,s),2.1(2H,m),2.32(1H,m),3.55(1H,m),3.62(3H,s),4.66(1H,m)ppm。b)(1R,3S,5R)-5-叔-丁基二甲基甲硅烷基氧-3-羟基-环己烷羧酸甲酯:3.8.a(R=H,P=TBDMS,A=COOCH3)。
如2.5.a(R=H,L=OTos,A=COOCH3)所述,自3.7.a(R=H,P=TBDMS,A=COOCH3)(63.67克,0.1926毫摩尔),使用庚烷/乙酯乙酯(7/3)作为洗脱液,于硅胶上进行快速层析加以纯化,得黄色油状物3.8.a(R=H,P=TBDMS,A=COOCH3)(46.24克,83%)。IR(薄膜):3404,2952,2856,1736,837厘米-11H-NMR(CDCl3):δ0(6H,s),0.81(9H,s),1.3(3H,m),1.67(1H,m),2.13(4H,m),3.56(2H,m),3.63(3H,s)ppm;[α]D 25:+6.8(c=1.036,CHCl3)。c)(1S,3S,5R)-5-叔-丁基二甲基甲硅烷基氧-3-甲苯磺酰基氧-环己烷羧酸甲酯:3.6.a(R=H,L=OTos,P=TBDMS,A=COOCH3)。
如2.4.a(R=H,L=OTos,A=COOCH3)所述,自3.8.a(R=H,P=TBDMS,A=COOCH3)(45.99克,0.159毫摩尔),使用庚烷/乙酯乙酯8/2作为洗脱液,于硅胶上进行快速层析加以纯化,接着自EtOH中结晶获得3.6.a(R=H,L=OTos,P=TBDMS,A=COOCH3)(53.7克,76%)。熔点:71℃;IR(KBr):2957,2855,1734,1174,923厘米-11H-NMR(CDCl3):δ0(6H,s),0.82(9H,s),1.41(3H,m),2.16(4H,m),2.46(3H,s),3.54(1H,m),3.69(3H,s),4.41(1H,m),7.34(2H,d),7.8(2H,d)ppm;[α]D 25:+6.8(c=1.032,EtOH)。d)(2s,3aR,4aR)-2-叔-丁基二甲基甲硅烷基氧-3a-甲酯基-双环[3.1.0]己烷:I.f.1(R=H,P=TBDMS,A=COOCH3)。
如I.b.1(R=H,P=TBDMS,A=COOCH3)所述,自3.6.a(R=H,L=OTos,P=TBDMS,A=COOCH3)(53.7克,0.121毫摩尔),获得淡黄色油I.f.1(R=H,P=TBDMS,A=COOCH3)(24.48克,74.6%)。IR(薄膜):2953,2856,1726,1148,836厘米-11H-NMR(CDCl3):δ0(6H,s),0.86(9H,s),1.5(5H,m),2.1(1H,m),2.48(1H,m),3.68(3H,s),4.33(1H,t)ppm;[α]D 25:+62.9(c=1.066,EtOH)。实施例11:(2S,3aR,4aR)-2-叔-丁基二甲基甲硅烷基氧-3a-(羟甲基)-双环[3.1.0.]己烷:I.f.2(R=H,P=TBDMS,A=CH2OH)。
如I.b.2(R=H,P=TBDMS,A=CH2OH)所述,自I.f.1(R=H,P=TBDMS,A=COOCH3)(10克,0.037毫摩尔)获得油状物定量产率的I.f.2(R=H,P=TBDMS,A=CH2OH)(10克)。IR(薄膜):3331,2927,2855,1254,1094,1006,835厘米-11H-NMR(CDCl3):δ0(6H,s),0.5(1H,m),0.88(9H,s),1.19(3H,m),1.72(2H,m),2.1(2H,m),3.6(2H,s),4.34(1H,t)ppm;[α]D 25:+23.2(c=0.99,EtOH)。实施例12:(2S,3aR,4aR)-2-叔-丁基二甲基甲硅烷基氧-3-甲酰基-双环[3.1.0.]己烷:I.f.3(R=H,P=TBDMS,A=CHO)。
如I.b.3(R=H,P=TBDMS,A=CHO)所述,将I.f.2(R=H,P=TBDMS,A=CH2OH)(10克,0.037毫摩尔)转换为淡黄色油状物I.f.3(R=H,P=TBDMS,A=CHO)(5.3克,59.7%)。IR(薄膜):2928,2855,1702,1255,1072,837厘米-11H-NMR(CDCl3):δ0(6H,s),0.85(9H,s),1.45(1H,m),1.78(3H,m),2.02(2H,m),2.5(1H,m),4.35(1H,m),8.81(1H,s)ppm;UV(EtOH):205纳米;[α]D 25:+70.4(c=1.1,EtOH)。实施例13:(2S,3aS,4aS)-2-叔-丁基二苯基甲硅烷基氧-3-甲酯基-双环[3.1.0]己烷:I.b.4(R=H,P=TBDPS,A=COOCH3)。a)(1R,3S,5R)-3-乙酰氧基-5-(4-溴苯基磺酰基氧)-环己烷羧酸甲酯:2.4.b(R=H,L=OBros,A=COOCH3)。
如2.4.a(R=H,L=OTos)所述,自2.A(R=H)(1.4克,6.47毫摩尔)和4-溴苯磺酰氯(4.22克,16.19毫摩尔)获得白色晶体2.4.b(R=H,L=OBros,A=COOCH3)(2.6克,96%)。熔点:110-111℃;IR(薄膜):2956,1734,1363,1246,1188,822,742厘米-11H-NMR(500MHz,CDCl3):δ7.76(2H,d,J=8.6Hz),7.70(2H,d,J=8.6Hz),4.68(1H,dddd,J=11.6,11.6,4.37,4.37Hz),4.46(1H,dddd,11.6,11.6,4.6,4.6Hz),3.69(3H,s),2.37(1H,m),2.28(2H,m),2.02(3H,s),1.58(2H,m),1.39(1H,dd,J=24.0,12.4Hz)ppm;MS(m/z):419(M+,1),405(1),363(3),221(10),157(34),138(70),107(15),79(68);[α]D 25:-10.65(c=1.50,CHCl3)。b)(1R,3S,5R)-5-(4-溴苯基磺酰基氧)-3-羟基-环己烷羧酸甲酯:2.5.b(R=H,L=OBros,A=COOCH3)。
如2.5.a(R=H,L=OTos)所述,自2.4.b(R=H,L=OBros,A=COOCH3)(2.55克,6.08毫摩尔)获得白色晶体2.5.b(R=H,L=OBros,A=COOCH3)(2.25克,98%)。熔点:95-98℃IR(薄膜):3397,2954,1734,1396,1186,81 5,740厘米-11H-NMR(500MHz,CDCl3):δ7.76(2H,d,J=8.6Hz),7.70(2H,d,J=8.6Hz),4.46(1H,dddd,J=11.5,11.5,4.5,4.5Hz),3.68(3H,s),3.64(1H,m),2.25(4H,m),1.60(1H,dd,J=24.2,12.5Hz),1.48(1H,dd,J=23.0,11.5Hz),1.35(1H,dd,J=23.8,12.5Hz)ppm;MS(m/z):377(M+,1),328(3),235(10),221(13),156(85),113(100),97(52),79(53);[α]D 25:-17.13(c=1.48,CHCl3)。c)(1R,3R,5R)-3-苯甲酰基氧-5-(4-溴苯磺酰基氧)-环己烷羧酸甲酯:2.6.b(R=H,L=OBros,A=COOCH3)。
如2.6.a(R=H,L=OTos,A=COOCH3)所述,始于2.5.b(R=H,L=OBros,A=COOCH3)(1.15克,3.05毫摩尔)。产率为1.13克(73%)。熔点:131-133℃IR(薄膜):3420,2948,1717,1362,1186,817,707厘米-1;1H-NMR(500MHz,CDCl3):δ7.95(2H,d,J=7.4Hz),7.72(2H,d,J=8.5Hz),7.60(1H,t,J=7.4Hz),7.58(2H,d,J=8.5Hz),7.49(2H,t,7.7Hz),5.46(1H,m),4.81(1H,dddd,J=11.3,11.3,4.4,4.4Hz),2.85(1H,dddd,J=12.5,12.5,3.7,3.7Hz),2.47(1H,m),2.20(2H,m),1.73(3H,m)ppm;MS(m/z):497(M+,1),391(4),377(10),260(100),237(8),221(25);[α]D 25:-59.32(c=1.79,CHCl3)。d)(1R,3R,5R)-5-(4-溴苯磺酰基氧)-3-羟基-环己烷羧酸甲酯:2.7.b(R=H,L=OBros,A=COOCH3)。
如2.7.a(R=H,L=OTos,A=COOCH3)所述,始于2.6.b(R=H,L=OBros,A=COOCH3)(240毫克,0.483毫摩尔)。产率为1 67毫克(88%)。熔点:107-108℃IR(薄膜):3527,2954,1732,1577,1365,1187,940,818厘米-11H-NMR(500MHz,CDCl3):δ7.78(2H,d,J=8.6Hz),7.70(2H,d,J=8.6Hz),4.87(1H,dddd,J=10.9,10.9,4.5,4.5Hz),4.31(1H,m),3.69(3H,s),2.86(1H,dddd,J=12.1,12.1,3.7,3.7Hz),2.24(1H,d,J=12.7Hz),2.04(1H,d,J=11.7Hz),1.94(1H,d,J=14.0Hz),1.65(3H,m)ppm;MS(m/z):394(M++1,1),295(2),221(4),157(11),97(10);[α]D 25:-38.75(c=0.80,CHCl3)。e)(1R,3R,5R)-5-(4-溴苯磺酰基氧)-3-叔-丁基二苯基甲硅烷基氧-环己烷羧酸甲酯:2.8.b(R=H,L=OBros,P=TBDPS,A=COOCH3)。
如2.8.a(R=H,L=OTos,P=TBDPS,A=COOCH3)所述,始于2.7.b(R=H,L=OBros,A=COOCH3)(299毫克,0.760毫摩尔),获得粘稠状油2.8.b(R=H,L=OBros,P=TBDPS,A=COOCH3)(198毫克,93%)。IR(薄膜):2955,1738,1577,1472,1370,1180,947,821,703厘米-11H-NMR(500MHz,CDCl3):δ7.71(2H,d,J=8.8Hz),7.34-7.60(12H,m),4.87(1H,m),4.17(1H,bs),3.78(3H,m),2.98(1H,dddd,J=9.1,9.1,3.5,3.5Hz),2.39(1H,d,J=11.9Hz),1.89(1H,d,J=13.9Hz),1.79(1H,d,J=12.3Hz),1.63(1H,m),1.34(2H,m),1.02(9H,s),0.91(3H,s)ppm;MS(m/z):599(M+,1),419(28),337(34),293(8),199(46),139(100),107(50),79(72);[α]D 25:+1.49(c=1.75,CHCl3)。f)(2S,3aS,4aS)-2-叔-丁基二苯基甲硅烷基氧-3a-甲酯基-双环[3.1.0]己烷:I.b.4(R=H,P=TBDPS,A=COOCH3)。
如I.b.1(R=H,P=TBDMS,A=COOCH3)所述,将化合物2.8.b(R=H,L=OBros,P=TBDPS,A=COOCH3)(206毫克,0.344毫摩尔)转换为无色油I.b.4(R=H,P=TBDMS,A=COOCH3)(79毫克,76%)。IR(薄膜):2952,1725,1428,1113,703厘米-11H-NMR(500MHz,CDCl3):δ7.64(4H,dd,J=6.20,6.20Hz),7.35-7.45(6H,m),3.89(1H,dddd,J=7.7,7.7,7.7,7.7Hz),3.65(3H,s),2.28(1H,dd,J=12.9,8.2Hz),2.12(1H,dd,J=12.9,7.1Hz),1.91(2H,m),1.77(1H,ddd,J=8.6,5.0,5.0Hz),1.19(1H,dd,J=8.6,4.8Hz),1.02(9H,s),0.44(1H,dd,J=5.1,5.1Hz)ppm;MS(m/z):394(M+,1),363(4),337(65),259(3),213(100),199(20),135(18),77(21);[α]D 25:-73.14(c=1.75,CHCl3)。实施例14:(2S,3aS,4aS)-2-叔-丁基二苯基甲硅烷基氧-3a-(羟甲基)-双环[3.1.0]己烷:I.b.5(R=H,P=TBDPS,A=CH2OH)。
如I.b.2(R=H,P=TBDMS,A=CH2OH)所述,自I.b.4(R=H,P=TBDPS,A=COOCH3)(188毫克,1.253毫摩尔),于硅胶(异辛烷/乙酸乙酯83∶17)上进行快速层析加以纯化,得粘稠状油I.b.5(R=H,P=TBDPS,A=CH2OH)(240毫克,96%)。IR(薄膜):3322,2932,1428,1113,702厘米-11H-NMR(500MHz,CDCl3):δ7.75(4H,m),7.58(6H,m),3.97(1H,dddd,J=7.1,7.1,7.1,7.1Hz),3.56(2H,bs),1.84-2.05(3H,m),1.12(1H,m),1.03(9H,s),0.34(1H,dd,J=7.8,5.4Hz),0.13(1H,dd,J=4.6,4.6Hz)ppm;MS(m/z):365(M+-1,1),291(3),231(10),199(100),181(12),139(27),93(77),79(24);[α]D 25:-25.74(c=2.16,CHCl3)。实施例15:(2S,3aS,4aS)-2-叔-丁基二苯基甲硅烷基氧-3a-甲酰基-双环[3.1.0]己烷:I.b.6(R=H,P=TBDPS,A=CHO)。
如I.b.3(R=H,P=TBDMS,A=CHO)所述,始于I.b.5(R=H,P=TBDPS,A=CH2OH)(230毫克,0.627毫摩尔),I.b.6(R=H,P=TBDPS,A=CHO)的产率为210毫克(92%)。IR(薄膜):3439,3061,2954,2858,1704,1589,1471,1111,1036,823,703厘米-1;1H-NMR(500MHz,CDCl3):δ8.85(1H,s),7.68-7.60(4H,m),3.99(1H,q,J=7.4Hz),2.30(1H,dd,J=13.1,8.0Hz),2.03-1.98(2H,m),1.93-1.87((2H,m),1.22(1H,dd,J=8.4,6.0Hz),1.02(9H,s),0.74(1H,dd,J=5.3,5.3Hz)ppm;[α]D 25:-90.00(c 1.00,CHCl3)。实施例16:(2S,3aS,4aS)-2-叔-丁基二苯基甲硅烷基氧-3a-乙炔基-双环[3.1.0]己烷:I.b.7(R=H,P=TBDPS,A=C=CH)。
将t-BuOK(1.26毫升,1.26毫摩尔,THF中的1.0M溶液)逐滴添加到冷却至-78℃,溶于THF(3毫升)的(MeO)2P(O)CHN2(188毫克,1.253毫摩尔)的溶液中。-78℃下搅拌该混合物20分钟,直到所呈现的黄色持续不变为止。缓缓添加溶于THF(3毫升)中的I.b.6(R=H,P=TBDPS,A=CHO)(380毫克,1.043毫摩尔)并持续搅拌过夜,温度由-78℃自然上升至室温。添加水(10毫升)和Et2O(20毫升)使反应骤冷,并分离有机相,水层用Et2O(3×50毫升)萃取,并用MgSO4干燥。残余物利用HPLC(己烷/EtOAc 96∶4)分离,得无色油状化合物I.b.7(R=H,P=TBDPS,A=C=CH)(338毫克,90%)。IR(薄膜):3291,3072,2932,2143,1590,1473,1428,1114,1091,824,741厘米-11H-NMR(500MHz,CDCl3):δ7.61-7.63(4H,m),7.34-7.43(6H,m),3.81(1H,q,J=7.6Hz),2.16(1H,dd,J=12.5,7.13Hz),2.02(1H,ddd,J=12.5,8.1,0.9Hz),1.95(1H,m),1.93(1H,s),1.56(1H,m),1.02(9H,s),0.70(1H,dd,J=8.3,5.1Hz),0.31(1H,t,J=5.0Hz)ppm;[α]D 25:-86.30(c=1.60,CHCl3)。实施例17:(2S,3aR,4aR)-2-叔-丁基二苯基甲硅烷基氧-3a-羧甲氧基-双环[3.1.0]己烷:I.f.4(R=H,P=TBDPS,A=COOCH3)。a)(1R,3R,5S)-3-叔-丁基二苯基甲硅烷基氧-5-羟基-环己烷羧酸甲酯:3.8.b(R=H,P=TBDPS,A=COOCH3)。
如实施例4中对3.8.a(R=H,P=TBDMS,A=COOCH3)所述,自2.A(R=H,A=COOCH3)和TBDPSC1,经过3.7.b(R=H,P=TBDPS,A=COOCH3)。获得粘稠油的标题化合物;两步骤的产率为92%IR(薄膜):3404,2952,1738,1428,1112,1049,807,710厘米-11H-NMR(500MHz,CDCl3):δ7.66(4H,m),7.40(6H,m),3.65(3H,s),3.60(1H,dddd,J=10.9,10.9,4.3,4.3Hz),3.41(1H,m),2.11(4H,m),1.50(1H,dd,J=12.6,12.6Hz),1.41(1H,d,J=5.2Hz),1.34(3H,m)ppm;MS(m/z):412(M+,1),355(5),323(67),199(100),153(37),105(21),79(85);[α]D 25:-16.44(c=1.60,CHCl3)。b)(1S,3R,5S)-3-叔-丁基二苯基甲硅烷基氧5-甲苯磺酰基氧-环己烷羧酸甲酯:3.6.b(R=H,L=OTos,P=TBDPS,A=COOCH3)。
如2.4.a(R=H,L=OTos,A=COOCH3)所述,自3.8.b(R=H,P=TBDPS,A=COOCH3)获得粘稠油状物3.6.b,产率为94%。IR(薄膜):2955,1738,1363,1178,1111,824,704厘米-11H-NMR(500MHz,CDCl3):δ7.69(2H,d,J=8.3Hz),7.58(4H,m),7.28(2H,d,J=8.1Hz),4.18(1H,dddd,J=11.6,11.6,4.6,4.6Hz),3.62(3H,s),3.48(1H,dddd,J=11.1,11.1,4.1,4.1Hz),2.47(3H,s),2.15-1.99(4H,m),1.52(1H,ddd,J=5.6,5.57,5.6Hz),1.42(1H,ddd,J=12.0,12.0,12.0Hz),0.98(9H,s)ppm;MS(m/z):567(M+,1),509(9),451(1),353(49),337(67),293(38),213(47),139(32),91(100),79(77);[α]D 25:+2.39(c=1.17,CHCl3)。c)(2S,3aR,4aR)-2-叔-丁基二苯基甲硅烷基氧-3a-甲酯基-双环[3.1.0]己烷:I.f.4(R=H,P=TBDPS,A=COOCH3)。
如I.b.1(R=H,P=TBDMS,A=COOCH3)所述,自3.6.b(R=H,L=OBros,P=TBDPS,A=COOCH3)得到产率为81%。IR(薄膜):3287,2934,1732,1457,1281,1017厘米-11H-NMR(500MHz,CDCl3):δ3.73(2H,m),3.72(3H,s),2.53(1H,dddd,J=12.2,12.2,3.4,3.4Hz),2.26(1H,d,J=11.3Hz),2.17(2H,d,J=11.7Hz),1.30(2H,ddd,J=12.0,12.0,12.0Hz),1.23(1H,ddd,J=11.4,11.4,11.4Hz)ppm;MS(m/z):394(M+,1),337(31),259(5),199(55),153(48),107(100),79(52);[α]D 25:+31.97(c=1.71,CHCl3)。实施例18:(2S,3aR,4aR)-2-叔-丁基二苯基甲硅烷基氧-3a-(羟甲基)-双环[3.1.0]己烷:I.f.5(R=H,P=TBDPS,A=CH2OH)。
如I.b.2(R=H,P=TBDMS,A=CH2OH)所述,自I.f.4(R=H,P=TBDPS,A=COOCH3),获得(2S,3aR,4aR)-2-叔-丁基二苯基甲硅烷基氧-3a-(羟甲基)-双环[3.1.0]己烷I.f.5(R=H,P=TBDPS,A=CH2OH),产率为98%。IR(薄膜):3332,2931,1428,1111,1008,822,702厘米-11H-NMR(500MHz,CDCl3):δ7.62(4H,dd,J=7.9,1.5Hz),7.39(6H,m),4.37(1H,t,J=6.27Hz),3.57(2H,s),1.90-2.02(3H,m),1.80(1H,d,J=13.8Hz),1.21(1H,t,J=4.1Hz),1.15(1H,m),1.03(9H,s),0.60(1H,m)ppm;MS(m/z):365(M+-1,1),291(6),231(17),199(100),181(17),139(28),93(79),79(16);[α]D 25:+5.56(c=1.5,CHCl3)。实施例19:(2S,3aR,4aR)-2-叔-丁基二苯基甲硅烷基氧-3a-甲酯基-双环[3.1.0]己烷:I.f.6(R=H,P=TBDPS,A=CHO)。
如I.b.3(R=H,P=TBDMS,A=CHO)所述,从I.f.5(R=H,P=TBDPS,A=CH2OH)得到产率为96%。IR(薄膜):2956,1704,1590,1472,1428,1112,1072,822,702厘米-11H-NMR(500MHz,CDCl3):δ8.85(1H,s),7.61(4H,m),7.43(2H,dt,J=7.0,1.0Hz),7.37(4H,dt,J=7.0,1.0Hz),4.40(1H,t,J=6.0Hz),2.39(1H,dd,J=14,6.0Hz),1.89(1H,d,J=13.0Hz),1.86(1H,d,J=14.0Hz),1.53(1H,m),1.04(9H,s)ppm;[α]D 25:+34.4(c=1.6,CHCl3)。实施例20:(2S,3aR,4aR)-2-叔-丁基二苯基甲硅烷基氧-3a-乙炔基-双环[3.1.0]己烷:I.f.7(R=H,P=TBDPS,A=C=CH)。
如I.b.7(R=H,P=TBDMS,A=C=CH)所述,始于I.f.6(R=H,P=TBDPS,A=CHO),得到产率为88%。IR(薄膜):3310(s),3071,2931,2857,2113,1590,1472,1428,1378,1362,1299,1262,1234,1198,1113,1026,933,913,865,822,701厘米-11H-NMR(500MHz,CDCl3):δ7.60(4H,m),7.42(2H,td,J=2,8Hz),7.37(4H,td,J=1,8Hz),4.32(1H,m),2.06(2H,m),2.04(1H,dt,J=6,14Hz),1.90(1H,s),1.80(1H,d,J=14Hz),1.65(1H,dt,J=5,10Hz),1.49(1H,t,J=5Hz),1.03(9H,s),1.03(1H,m);[α]D 25:+21.4(c=1.2,CHCl3)。实施例21:(2R,3aS,4aS)-2-叔-丁基二苯基甲硅烷基氧-3a-甲酯基-双环[3.1.0]己烷:I.a.4(R=H,P=TBDPS,A=COOCH3)。a)(1R,3S,5R)-3-叔-丁基二苯基甲硅烷基氧-5-甲苯磺酰基氧-环己烷羧酸甲酯:2.3.b(R=H,L=OTos,P=TBDPS,A=COOCH3)。
如2.8.a(R=H,L=OTos,P=TBDMS,A=COOCH3)所述,自2.5.a(R=H,L=OTos,A=COOCH3),得到产率为91%。IR(薄膜):2932,2857,1736,1428,1364,1177,1107,929,822,703,665厘米-11H-NMR(500MHz,CDCl3):δ7.69(2H,d,J=8.3Hz),7.57(4H,dm,J=7Hz),7.44(2H,q,J=7Hz),7.36(4H,t,J=8Hz),7.28(2H,d,J=8.4Hz),4.16(1H,tt,J=4,12Hz),3.63(3H,s),3.46(1H,tt,J=4,11Hz),2.43(3H,s),2.13(1H,dm,J=12Hz),1.00(9H,s)ppm;[α]D 25:-3.07(c=1.04,CHCl3)。b)(2R,3aS,4aS)-2-叔-丁基二苯基甲硅烷基氧-3a-甲酯基-双环[3.1.0]己烷:I.a.4(R=H,P=TBDPS,A=COOCH3)。
如I.b.1(R=H,P=TBDMS,A=COOCH3)所述,自2.3.b(R=H,L=OTos,P=TBDPS,A=COOCH3)得到产率为75%。IR(薄膜):2932,2857,1723,1589,1472,1428,1297,1148,1112,1088,702厘米-11H-NMR(500MHz,CDCl3):δ7.61(4H,dd,J=1,7Hz),7.42(2H,t,J=7Hz),7.37(4H,t,J=7Hz),4.36(1H,t,6.1Hz),3.63(3H,s),2.37(1H,ddd,J=1,6.4,14Hz),1.99(1H,d,J=14Hz),1.96(1H,dd,J=6,14Hz),1.87(1H,dt,J=5,9Hz),1.82(1H,d,J=14Hz),1.63(1H,dd,J=4,5Hz),1.50(1H,dm,J=9Hz),1.03(9H,s)ppm;[α]D 25:-30.8(c=0.46,CHCl3)。实施例22:(2R,3aS,4aS)-2-叔-丁基二苯基甲硅烷基氧-3a-(羟甲基)-双环[3.1.0]己烷:I.a.5(R=H,P=TBDPS,A=CH2OH)。
如I.b.2(R=H,P=TBDMS,A=CH2OH)所述,自I.a.4(R=H,P=TBDPS,A=COOCH3),得到定量产率。IR(薄膜):3346,2930,1589,1472,1428,1111,1092,1076,1031,822,701厘米-11H-NMR(500MHz,CDCl3):δ7.26(4H,dd,J=1,7Hz),7.41(2H,t,J=7Hz),7.36(4H,t,J=7Hz),4.38(1H,t,J=6.3Hz),3.57(2H,s),2.00(1H,dd,J=6,13Hz),1.95(1H,dd,J=7,14Hz),1.92(1H,d,J=14Hz),1.80(1H,dd,J=14Hz),1.22(2H,m),1.15(1H,m),1.04(9H,s),0.60(1H,m)ppm;[α]D 25:-5.6(c=1.7,CHCl3)。实施例23:(2R,3aS,4aS)-2-叔-丁基二苯基甲硅烷基氧-3a-甲酯基-双环[3.1.0]己烷:I.a.6(R=H,P=TBDPS,A=CHO)。
如I.b.3(R=H,P=TBDMS,A=CHO)所述,始于I.a.5(R=H,P=TBDPS,A=CH2OH),得到产率为93%。IR(薄膜):2931,1701,1589,1472,1196,1008,822,702厘米-11H-NMR(500MHz,CDCl3):δ8.85(1H,s),7.61(4H,m),7.43(2H,t,J=7Hz),7.37(4H,t,J=7Hz),4.41(1H,t,J=6Hz),2.39(1H,dd,J=6,14Hz),1.04(9H,s)ppm;[α]D 25:-35.3(c=1.6,CHCl3)。实施例24:(2R,3aR,4aR)-2-叔-丁基二苯基甲硅烷基氧-3a-甲酯基-双环[3.1.0]己烷:I.h.4(R=H,P=TBDPS,A=COOCH3)。a)(1S,3S,5S)-3-叔-丁基二苯基-5-甲苯磺酰基氧-环己烷羧酸甲酯:3.13.b(R=H,L=OTos,P=TBDPS,A=COOCH3)。
如2.8.a(R=H,L=OTos,P=TBDS,A=COOCH3)所述,始于3.12(R=H,L=OTos,A=COOCH3)(4.8克,14.63毫摩尔),得到产率为90%。IR(薄膜):2954,1731,1272,1176,1107,945,813,713,664厘米-11H-NMR(500MHz,CDCl3):δ7.53-7.25(14H,m),4.84(1H,m),3.68(3H,s),2.95(1H,dt,J=3.3,12.7Hz),2.45(3H,s),2.37(1H,d,J=12.4Hz),1.84(1H,d,J=12.7Hz),1.60(1H,m),1.29(3H,m)ppm;MS(m/z):566(M+),477,431,399,353,283,225,198,139,91(基峰);[α]D 25:+7.82(c=1.31,CHCl3)。b)(2R,3aR,4aR)-2-叔-丁基二苯基甲硅烷基氧-3a-甲酯基-双环[3.1.0]己烷:I.h.4(R=H,P=TBDPS,A=COOCH3)。
如I.b.1(R=H,P=TBDMS,A=COOCH3)所述,始于3.13.b(R=H,P=TBDPS,A=COOCH3)(7.3克,12.89毫摩尔),产率为79%。IR(薄膜):2952,2858,1723,1428,1370,1219,1112,823,741,702厘米-11H-NMR(500MHz,CDCl3):δ7.66-7.38(10H,m),3.89(1H,m),3.65(3H,s),2.12(1H,m),1.92(2H,m),1.77(1H,m),1.14(2H,m),1.02(9H,s),0.45(1H,m)ppm;MS(m/z):394(M+),393(M+-1),363,351,337,296,259,213(基峰),183,135,105,77。[α]D 25:+72.58(c=1.08,CHCl3)。实施例25:(2R,3aR,4aR)-2-叔-丁基二苯基甲硅烷基氧-3a-(羟甲基)-双环[3.1.0]己烷:I.h.5(R=H,P=TBDPS,A=CH2OH)。
如I.b.2(R=H,P=TBDMS,A=CH2OH)所述,始于I.h.4(R=H,P=TBDPS,A=COOCH3),产率为98%。IR(薄膜):3327,2929,2856,1470,1426,1279,1112,1087,1030,822,739,700厘米-11H-NMR(500MHz,CDCl3):δ7.65-7.35(10H,m),3.97(1H,ddd,J=7.0,7.2,7.0Hz),3.55(2H,bs),2.04(1H,m),1.93(1H,m),1.87(2H,m),1.39(1H,m),1.02(9H,s),0.45(1H,m),0.13(1H,m)ppm;MS(m/z):365(M+-1),322,281,237,189(基峰),181,139,99,77;[α]D 25:+24.77(c=1.18,CHCl3)。实施例26:(2R,3aR,4aR)-2-叔-丁基二苯基甲硅烷基氧-3a-甲酰基-双环[3.1.0]己烷:I.h.6(R=H,P=TBDPS,A=CHO)。
如针对I.b.3(R=H,P=TBDMS,A=CHO)所述,始于I.h.5(R=H,P=TBDPS,A=CH2OH)。IR(薄膜):2931,2857,1708,1472,1388,1362,1200,1113,1093,1036,901,823,742,612厘米-11H-NMR(500MHz,CDCl3):δ8.87(1H,s),7.65-7.35(10H,m),3.98(1H,m),2.29(1H,dd,J=12.9,8.1Hz),2.01(2H,m),1.89(2H,m),1.22(1H,m),1.02(9H,s),0.74(1H,t,J=5.4Hz)ppm;MS(m/z):365(M++1),332,307(基峰),289,277,263,229,211,199,181,151,139,121,91,77,57,41;[α]D 25:+91.49(c=0.47,CHCl3)。实施例27:(1R,2S,3aS,4aS)-3a-甲酯基-2-叔-丁基二甲基甲硅烷基氧-1-甲基-双环[3.1.0]己烷:I.a.7(R=Me,P=TBDPS,A=COOCH3)。-双环[3.1.0]己烷:I.a.7(R=Me,P=TBDPS,A=COOCH3)。a)(1S,3S,4R,5R)-3-叔-丁基二甲基甲硅烷基氧-4-甲基-5-乙酰氧基-环己烷羧酸甲酯:2.1.c(R=Me,P=TBDPS,A=COOCH3)。
将TBDPSCl(1.8毫升,7.04毫摩尔,98%)逐滴加入溶于无水DMF(15毫升)的2′B(R=Me,A=COOCH3)(0.81克,3.52毫摩尔)、咪唑(0.72克,10.57毫摩尔,99%)和DMAP(4-二甲基氨基吡啶;22毫克)的搅拌溶液中。室温下搅拌该混合物20小时。完成后,将该反应溶液倾入水-EtOAc(80毫升)中分离有机层,然后用EtOAc(50毫升×3)萃取水层。合并的有机层用盐水(3×10毫升)清洗,用MgSO4干燥,并浓缩,得残余物。残余物用HPLC(异辛烷/EtOAc9∶1z)纯化,得2.1.c(R=Me,P=TBDPS,A=COOCH3)(1.34克,84%)。[α]D:+9.9(CHCl3,c=0.65)1H-NMR(500MHz,in CDCl3,ppm):7.65-7.35(10H,m),4.59(1H,dt,J=12.4,4.5Hz),3.72(1H,m),3.62(3H,s),2.26(1H,m),2.09(1H,m),2.02(3H,s),1.81(1H,dt,J=12.6,4.1Hz),1.61(1H,m),1.08(10H,s),1.05(3H,d,J=6.4Hz)。IR(薄膜):2954,1737,1428,1364,1239,1111,1037,822,740,702厘米-1;MS(m/z):411(M+-57),369,351,317,291,259,258,241,199,181,135,121,93,43(基峰)。b)(1S,3S,4R,5R)-5-叔-丁基二苯基甲硅烷基氧-4-甲基-5-羟氧-环己烷羧酸甲酯:2.2.c(R=Me,P=TBDPS,A=COOCH3)。
将无水的K2CO3(30毫克)加到室温下溶于10毫升无水MeOH中的2.1.c(R=Me,P=TBDPS,A=COOCH3)(392毫克,0.992毫摩尔)的搅拌悬浮液中。10分钟后,添加第二部分的K2CO3(19毫克)(总计:49毫克,0.496毫摩尔)。搅拌该混合物6小时,然后将其倾入水和Et2O(70毫升:50毫升)中分离有机层,并用Et2O(50毫升×3)萃取水层,以及用MgSO4干燥。于硅胶(异辛烷/EtOAc 9∶1)上进行快速层析加以分离,得无色油的羟基化合物2.2.c(R=Me,P=TBDPS,A=COOCH3)(344毫克,98%)。IR(薄膜):3448,2954,2858,1737,1654,1472,1362,1279,1240,1173,1008,852,822,795,741,702,611厘米-11H-NMR(500MHz,in CDCl3,ppm):7.65(4H,m),7.44(2H,m),7.37(4H,m),3.69(1H,m),3.64(3H,s),3.51(1H,m),2.16(1H,m),2.08(1H,m),1.77(1H,dt,J=12.6,4.1Hz),1.69(2H,t,J=8.9Hz),1.56(1H,q,J=12.4Hz),1.37(1H,d,J=5.3Hz),1.06(9H,s),1.02(3H,d,J=7.0Hz)。MS(m/z):337(7),309(5),291(35),199(100),156(85),181(17),153(34),121(23),93(68),57(47)。[α]D 25:+33.0(c=0.54,CHCl3)。c)(1S,3S,4R,5R)-3-叔-丁基二苯基甲硅烷基氧-4-甲基-5-甲苯磺酰基氧-环己烷羧酸甲酯:2.3.c(R=Me,P=TBDPS,L=OTos,A=COOCH3)。
将Et3N(308微升,2.54毫摩尔)加到0℃下溶于10毫升无水CH2Cl2中的2.2.c(R=Me,P=TBDMS,A=COOCH3)(279毫克,0.828毫摩尔)、对-甲苯磺酰氯(323毫克,1.69毫摩尔,98%),DMAP(5.1毫克,0.042毫摩尔)的混合物中。回流该混合物3天;然后添加对-甲苯磺酰氯(320毫克,1.69毫摩尔,98%)、DMAP(5.1毫克,0.042毫摩尔)和Et3N(500微升)。回流所得溶液2天,再添加对-甲苯磺酰氯(320毫克,1.69毫摩尔,98%)、DMAP(5.10毫克,0.042毫摩尔)和Et3N(500微升),并持续再回流一天。所得混合物用20毫升的CH2Cl2稀释,用盐水清洗,并且水层用EtOAc(4×50毫升)萃取。合并的有机相以MgSO4干燥。过滤溶剂,于硅胶(异辛烷/EtOAc 9∶1)上浓缩并进行快速层析,得淡黄色油的2.3.c(R=Me,P=TBDPS,L=OTos,A=COOCH3)(316毫克,83.5%)。IR(薄膜):2954,2858,1737,1365,1246,1177,1106,955,704,667厘米-11H-NMR(500MHz,in CDCl3,ppm):7.71(2H,d,J=8.3Hz),7.58(4H,m),7.43(2H,m),7.37(4H,m),7.31(2H,d,J=8.1Hz),4.27(1H,dt,J=12.0,4.7Hz),3.61(3H,s),3.57(1H,ddd,J=10.6,5.1,4.6Hz),2.45(3H,s),2.17(1H,m),2.01(1H,m),1.81(1H,dt,J=12.8,4.2Hz),1.74(1H,dd,J=12.6Hz),1.64(2H,m),1.02(9H,s),0.99(3H,d,J=6.6Hz)。MS(m/z):523(25),507(1),463(1),409(3),353(94),307(20),293(18),213(30),199(32),135(35),91(100),77(30)。[α]D 25:-10.0(c=1.22,CHCl3)d)(1R,2S,3aS,4aS)-3a-甲酯基-2-叔-丁基二苯基甲硅烷基氧-1-甲基-双环[3.1.0]己烷:I.a.7(R=Me,P=TBDPS,A=COOCH3)。
将叔-BuOK(540微升,0.54毫摩尔,叔-BuOH中1M的溶液)逐滴添加于45℃下,溶于叔-BuOH(5毫升)和THF(2.8毫升)的甲苯磺酸盐2.3.c(R=Me,P=TBDPS,L=OTos,A=COOCH3)(240毫克,0.415毫摩尔)的溶液中。45℃下搅拌该混合物1.5小时,然后将其倾入水和EtOAc(100毫升:50毫升)中。分离有机相,水层用EtOAc(3×50毫升)萃取,并以MgSO4干燥。残余物利用快速层析术(异辛烷/EtOAc 100∶2)分离,得无色油的化合物I.a.7(R=Me,P=TBDPS,A=COOCH3)(122毫克,72.0%)。IR(薄膜):2931,1724,1428,1288,1224,1147,1111,1073,1015,933,822,740,702,609厘米-1 1H-NMR(500MHz,in CDCl3,ppm):7.61(14H,m),7.42(2H,m),7.36(4H,t,J=7.2Hz),4.19(1H,t,J=6.0Hz),3.62(3H,s),2.30(2H,m),1.97(1H,d,J=14.2Hz),1.85(1H,m),1.64(1H,t,J=4.6Hz),1.35(1H,dd,J=8.7,3.9Hz),1.09(9H,s),0.99(3H,d,J=6.9Hz)。MS(m/z):[α]D 25:-13.2(c=1.61,CHCl3)实施例28:(1R,2S,3aS,4aS)-3a-羟甲基-2-叔-丁基二苯基甲硅烷基氧-1-甲基-双环[3.1.0]己烷:I.a.8(R=Me,P=TBDPS,A=CH2OH)。
将LiAlH4(0.85毫升,0.84毫摩尔,THF中1M的溶液)逐滴添加于0℃下溶于THF(15毫升)中的I.a.7(R=Me,P=TBDPS,A=COOCH3)(136毫克,0.33毫摩尔)的溶液中。于此温度下搅拌所得混合物1.5小时,然后添加水(0.1毫升)。所得混合物经过硅藻土过滤并浓缩。残余物用快速层析(硅胶:异辛烷/EtOAc 7∶3)纯化,得无色油的I.a.8(R=Me,P=TBDPS,A=CH2OH)(124毫克,97.8%)。IR(薄膜):3420,2930,1427,1111,1078,1014,701,611,504厘米-11H-NMR(500MHz,in CDCl3,ppm):7.63(4H,m),7.42(2H,m),7.36(4H,m),4.21(1H,t,J=6.0Hz),3.54(1H,dd,J=11.4,5.6Hz),3.50(1H,dd,J=11.4,5.6Hz),2.29(1H,m),1.95(1H,ddd,J=13.7,6.0,1.4Hz),1.23(1H,t,J=4.12Hz),1.14(1H,m),1.08(9H,s),0.99(3H,d,J=7.0Hz),0.41(1H,dd,J=8.4,4.3Hz),0.80(1H,m)。MS(m/z):381(M++1,1),363(22),337(1),323(22),305(5),285(9),267(24),245(63),225(19),199(83),179(19),153(29),139(51),107(100),91(58),79(72),57(86),41(78)。[α]D 25:-2.6(c=0.69,CHCl3)实施例29:(1R,2S,3aS,4aS)-3a-甲酰基-2-叔-丁基二苯基甲硅烷基氧-1-甲基-双环[3.1.0]己烷:I.a.9(R=Me,P=TBDPS,A=CHO)
将溶于CH2Cl2(100微升)中的DMSO(32微升,0.42毫摩尔)逐滴添加于-78℃,溶于CH2Cl2(1.5毫升)的(COCl)2(18微升,0.21毫摩尔)的溶液中。-78℃下搅拌该混合物20分钟,接着添加溶于CH2Cl2(1.5毫升)中的醇I.a.8(R=Me,P=TBDPS,A=CH2OH)(40毫克,0.105毫摩尔)。于-78℃下搅拌所得白色悬浮液20分钟。然后历时1小时将混合物温热至室温。反应藉添加冷水而骤冷,并分离有机相,水层用Et2O(3×50毫升)萃取,并以MgSO4干燥。残余物利用HPLC(己烷/EtOAc 95∶5)分离,得无色油的化合物I.a.9(R=Me,P=TBDPS,A=CHO)(30毫克,75%)。IR(薄膜):3420,2930,1427,1111,1078,1014,701,611,504厘米-11H-NMR(500MHz,in CDCl3,ppm):8.80(1H,s),7.62(4H,m),7.42(6H,m),4.24(1H,t,J=5.8Hz),2.32(1H,dd,J=14.4,6.1Hz),1.96(2H,m),1.84(1H,d,J=14.4Hz),1.36(1H,m),1.08(9H,s),1.00(3H,d,J=7.0Hz),0.91(1H,d,J=6.8Hz)。MS(m/z):378(M+,1),361(4),321(100),303(10),285(10),267(24),263(16),243(74),225(39),199(100),183(76),165(39),139(72),135(48),105(59),91(34),77(60),57(95),41(80)。[α]D 25:-1 6.2(c=0.59,CHCl3)实施例30:(1S,2R,3aR,4aR)-3a-甲酯基-2-叔-丁基二苯基甲硅烷基氧-1-甲基-双环[3.1.0]己烷:I.f.8(R=Me,P=TBDPS,A=COOCH3)。a)(1S,3S,4R,5R)-3-甲苯磺酰基氧-4-甲基-5-乙酰基氧-环己烷羧酸甲酯:3.4.c(R=Me,L=OTos,A=COOCH3)。
如2.3.c(R=Me,P=TBDPS,L=OTos,A=COOCH3)所述,始于2′B(R=Me,Z=Me,A=COOCH3)(1.05克,4.57毫摩尔),产率为1.51克,89%。IR(薄膜):2954,1736,1557,1363,1342,1189,1025,956,919,667厘米-1 1H-NMR(500MHz,in CDCl3,ppm):7.69(2H,d,J=7.2Hz),7.38(2H,d,J=7.2Hz),4.74(1H,dt,J=12.2,4.5Hz),4.49(1H,dt,J=12.1,4.7Hz),3.69(3H,s),2.46(3H,s),2.02(3H,s),1.98(1H,dt,J=12.1,4.7Hz),1.93(1H,dt,J=12.6,4.6Hz),1.81(2H,dd,J=12.8Hz),1.63(2H,dd,J=12.6Hz),0.97(3H,d,J=6.9Hz)。MS(m/z):384(M+),343,326,311,300,269,258,213,170,152,111,93,43(基峰)。[α]D 25:+51.1(c=0.59,CHCl3)b)(1S,3S,4R,5R)-3-甲苯磺酰基氧-4-甲基-5-羟氧-环己烷羧酸甲酯:3.5.c(R=Me,L=OTos,A=COOCH3)
如2.2.c(R=Me,P=TBDPS,A=COOCH3)所述,始于3.4.c(R=Me,L=OTos,A=COOCH3),产率为90%。IR(薄膜):3439,2988,1732,1439,1353,1176,1097,1021,945,667厘米-11H-NMR(500MHz,in CDCl3,ppm):7.78(2H,d,J=7.2Hz),7.32(2H,d,J=7.2Hz),4.52(1H,dt,J=10.8,4.7Hz),3.69(1H,m),3.68(3H,s),2.45(3H,s),2.34(1H,m),2.25(1H,m),1.94(2H,m),1.87(1H,dt,J=13.2,4.5Hz),1.75(1H,bs),1.66(1H,dd,J=11.9Hz),0.91(3H,d,J=7.0Hz)。MS(m/z):340(M+-2),295,278,247,220,194,170,155,127(基峰),91,87,57。[α]D 25:+18.8(c=0.41,CHCl3)。c)(1S,3S,4R,5R)-3-甲苯磺酰基氧-4-甲基-5-叔-丁基二苯基甲硅烷基氧-环己烷羧酸甲酯:3.6.c(R=Me,L=OTos,P=TBDPS,A=COOCH3)。
如2.1.c(R=Me,P=TBDPS,A=COOCH3)所述,始于3.5.c(R.=Me,L=OTos,A=COOCH3),产率为86%。IR(薄膜):2955,1736,1598,1427,1363,1177,1031,955,914,863,820,741,703,667厘米-1 1H-NMR(500MHz,in CDCl3,ppm):7.69-7.38(14H,m),4.27(1H,dt,J=12.1,4.8Hz),3.61(3H,s),3.56(1H,m),2.44(3H,s),2.17(1H,m),2.02(1H,m),1.83(1H,dt,J=12.5,4.3Hz),1.73(1H,dd,J=12.7Hz),1.63(2H,m),1.01(9H,s),0.99(3H,d,J=7.2Hz)。MS(m/z):523(M+-57),463,403,353,351,293,227,213,135,91(基峰),77。[α]D 25:-2.6(c=0.94,CHCl3)d)(1S,2R,3aR,4aR)-3a-甲酯基-2-叔-丁基二苯基甲硅烷基氧-1-甲基-双环[3.1.0]己烷:I.f.8(R=Me,P=TBDPS,A=COOCH3)。
如I.a.7(R=Me,P=TBDPS,A=COOCH3)所述,始于3.6.c(R=Me,L=OTos,P=TBDPS,A=COOCH3),获得一无色油,产率为68%的标题化合物。IR(薄膜):2931,2857,1724,1428,1367,1288,1223,1147,1111,1073,1015,934,822,740,702,609厘米-1 1H-NMR(500MHz,in CDCl3,ppm):7.62-7.31(10H,m),4.19(1H,t,J=5.9Hz),3.59(3H,s),2.31(2H,dd,J=13.7,6.3Hz),1.96(1H,d,J=14.5Hz),1.84(1H,m),1.64(1H,t,J=4.6Hz),1.35(1H,dd,J=12.8,5.0Hz),1.25(1H,br.),1.07(9H,s),0.99(3H,d,J=6.9Hz),0.91(1H,m)。MS(m/z):408(M+),351,323,273,213,199,153,121(基峰),77。[α]D 25:+13.9(c=0.65,CHCl3)实施例31:(1S,2R,3aR,4aR)-3a-羟甲基-2-叔-丁基二苯基甲硅烷基氧-1-甲基-双环[3.1.0]己烷:I.f.9(R=Me,P=TBDPS,A=CH2OH)
如I.a.8(R=Me,P=TBDPS,A=CH2OH)所述,始于I.f.8(R=Me,P=TBDPS,A=COOCH3),产率为98%。IR(薄膜):3324,2929,2857,1654,1471,1427,1363,1194,1107,1078,1011,822,740,701,610厘米-11H-NMR(500MHz,in CDCl3,ppm):7.68-7.37(10H,m),4.21(1H,t,J=6.0Hz),3.54(1H,dd,J=11.4,6.0Hz),3.52(1H,dd,J=11.4,6.0Hz),2.29(1H,dd,J=11.3,8.1Hz),1.94(1H,dd,J=14.6,5.9Hz),1.86(1H,d,J=13.2Hz),1.23(1H,t,J=4.1Hz),1.14(1H,m),1.07(9H,s),0.99(3H,d,J=6.9Hz),0.89(1H,m),0.41(dd,J=8.1,4.3Hz)。MS(m/z):323(M+-57),305,267,245,199,181,139,107。[α]D 25:+3.1(c=0.93,CH3Cl)实施例32:(1S,2R,3aR,4aR)-3a-甲酰基-2-叔-丁基二苯基甲硅烷基氧-1-甲基-双环[3.1.0]己烷:I.f.10(R=Me,P=TBDPS,A=CHO)
如I.a.9(R=Me,P=TBDPS,A=CHO)所述,始于I.f.9(R=Me,P=TBDPS,A=CH2OH),产率为28%。[α]D 25:+15.8(c=0.41,CH3Cl)1H-NMR(500MHz,in CDCl3,ppm):8.80(1H,s),7.61-7.35(10H,m),4.24(1H,t,J=5.8Hz),2.31(2H,m),1.96(1H,m,dd,J=8.1,5.9Hz),1.84(1H,d,J=14.3Hz),1.37(1H,dd,J=11.0,7.1Hz),1.26(1H,dd,J=9.7,4.6Hz),1.07(9H,s),1.04(3H,t,J=6.9Hz)。IR(薄膜):2959,2857,1703,1471,1391,1383,1274,1215,1191,1111,1109,1009,963,823,701厘米-1。MS(m/z):377(M+-1,5),337(75),321(M+-57,8),319(10),309(10),293(6),259(12),231(20),215(16),199(100),181(30),153(20),139(60),121(95)。实施例33:(1R,2S,3aS,4aS)-3a-甲酯基-2-叔-丁基二苯基甲硅烷基氧-1-乙基-双环[3.1.0]己烷:I.a.10(R=Et,P=TBDPS,A=COOCH3)。a)(1S,3S,4R,5R)-3-叔-丁基二苯基甲硅烷基氧-4-乙基-5-乙酰基氧-环己烷羧酸甲酯:2.1.d(R=Et,P=TBDPS,A=COOCH3)
如3.4.c所述,始于2′C(R=Et,Z=Me,A=COOCH3),产率为92%。[α]D 25:+7.5(c=O.59,CH3Cl)1H-NMR(500MHz,in CDCl3,ppm):7.45-7.36(10H,m),4.62(1H,dt,J=12.2,4.4Hz),3.69(1H,dt,J=11.5,4.3Hz),3.61(3H,s),2.08(2H,tt,J=8.8,3.9Hz),2.01(3H,s),1.85(2H,m),1.60(3H,m),1.51(1H,m),1.06(9H,s),1.02(3H,t,J=7.5Hz)。IR(薄膜):2954,2848,1739,1462,1428,1364,1238,1194,1178,1110,1034,986,812,740,702厘米-1。MS(m/z):482(M+,2),468(5),45 1(7),425(M+-57),391(1),365(80),351(25),305(15),273(20),241(100),213(88),199(92),153(56),135(75),107(85)。b)(1S,3S,4R,5R)-3-叔-丁基二苯基甲硅烷基氧-4-乙基-5-羟基-环己烷羧酸甲酯2.2.d(R=Me,P=TBDPS,A=COOCH3)
如2.2.c(R=Me,P=TBDPS,A=COOCH3)所述,始于2.1.d(R=Et,P=TBDPS,A=COOCH3),产率为98%。[α]D 25:+28.7(c=0.19,CH3Cl)1H-NMR(500MHz,in CDCl3,ppm):7.68(10H,m),3.68(1H,dt,J=8.2,4.2Hz),3.62(3H,s),3.57(1H,dt,J=11.1,4.6Hz),2.07(1H,m),1.85(1H,t,J=4.1Hz),1.77(1H,dt,J=8.6,4.0Hz),1.71(1H,tt,J=11.0,4.0Hz),1.64(2H,t,J=9.0),1.59(1H,overlap),1.52(1H,bs),1.45(1H,m),1.06(9H,s),1.05(3H,t,J=7.5)。IR(薄膜):3435,2995,2858,1736,1589,1460,1427,1363,1271,1236,1172,1111,1050,915,875,823,740,702,647厘米-1。MS(m/z):383(M+-57,14),351(16),323(18),305(90),273(18),253(10),227(50),199(100),183(70),153(80),107(98)。c)(1S,3S,4R,5R)-3-叔-丁基二苯基甲硅烷基氧-4-乙基-5-甲苯磺酰基氧-环己烷羧酸甲酯2.3.d(R=Et,P=TBDPS,L=Otos,A=COOCH3)
如2.3.c(R=Me,P=TBDPS,L=OTos,A=COOCH3)所述,始于2.2.d(R=Et,P=TBDPS,A=COOCH3),产率为82%。[α]D 25:-17.9(c=0.59,CH3Cl)1H-NMR(500MHz,in CDCl3,ppm):7.72-7.30(14H,m),4.28(1H,dt,J=12.5,4.5Hz),3.59(3H,s),3.55(1H,dt,J=11.4,4.3Hz),2.45(3H,s),1.96(1H,tt,J=8.5,4.1Hz),1.91(1H,t,J=4.2Hz),1.84(1H,dt,J=8.5,4.1Hz),1.77(1H,m),1.73(1H,m),1.53(2H,m),1.47(1H,m),1.02(9H,s),0.97(3H,t,J=7.5Hz)。IR(薄膜):2957,2858,1738,1598,1487,1462,1428,1360,1277,1189,1111,1030,953,885,822,741,704厘米-1。MS(m/z):357(M+-57,45),353(100),293(22),227(5),199(48),135(70)。d)(1R,2S,3aS,4aS)-3a-甲酯基-2-叔-丁基二苯基甲硅烷基氧-1-乙基-双环[3.1.0]己烷I.a.10(R=Et,P=TBDPS,A=COOCH3)
如I.a.7(R=Me,P=TBDPS,A=COOCH3)所述,始于2.3.d(R=Et,P=TBDPS,L=OTos,A=COOCH3),产率为71%。[α]D 25:-33.3(c=0.27,CH3Cl)1H-NMR(500MHz,in CDCl3,ppm):7.63-7.35(10H,m),4.18(1H,t,J=5.9Hz),3.61(3H,s),2.26(1H,m),2.06(1H,m),1.98(1H,d,J=14.3Hz),1.92(1H,m),1.67(1H,t,J=4.3Hz),1.48(2H,m),1.36(1H,dd,J=8.7,3.9Hz),1.05(9H,s),0.89(3H,J=7.4Hz)。IR(薄膜):2958,1723,1427,1366,1298,1224,1148,1111,1064,1028,926,821,740,610,507厘米-1。MS(m/z):422(M+,2),391(4),365(M+-57,40),337(8),287(12),259(10),225(8),199(65),135(100),105(38)。实施例34:(1S,2R,3aR,4aR)-3a-甲酯基-2-叔-丁基二苯基甲硅烷基氧-1-乙基-双环[3.1.0]己烷I.f.11(R=Et,P=TBDPS,A=COOCH3)a)(1S,3S,4R,5R)-3-甲磺酰基氧-4-乙基-5-乙酰基氧-环己烷羧酸甲酯:3.4.d(R=Et,L=OMs,A=COOCH3)。
室温下,将MsCl(96微升,1.23毫摩尔)逐滴加入溶于5毫升中的CH2Cl2的单乙酸酯2′C(A=COOCH3,R=Et,Z=Me)(0.1克,0.41毫摩尔)、Et3N(0.30毫升,2.10毫摩尔)的溶液中。室温下搅拌该所得混合物10小时,将该反应溶液倾入冰-水中,用AcOEt(3×50毫升)萃取。合并的有机层用盐水(3×5毫升)清洗,以MgSO4干燥,并浓缩,得残余物。残余物经HPLC,用异辛烷/EtOAc(90∶10)洗脱加以纯化,得甲磺酰基化的3.4.d(A=COOCH3,R=Et,L=OMs)(0.11克,85%)。IR(薄膜):2954,1737,1641,1357,1241,1175,952厘米-1 1H-NMR(500MHz,in CDCl3,ppm):4.87(1H,dt,J=10.9,4.2Hz),4.75(1H,dt,J=4.5,10.9Hz),3.69(3H,s),3.00(3H,s),2.48(1H,m),2.23(1H,bs),2.13(1H,dt,J=4.2,11.8Hz),2.05(3H,s),2.01(1H,d,J=8.8Hz),1.96(1H,dt,J=13.3,4.5Hz),1.83(1H,m),1.58(2H,m),1.01(3H,s)。MS(m/z):322(M+),309,291,248,227,199,166,135,107,78,43(基峰)。[α]D 25:+2.6(c=1.08,CHCl3)b)(1S,3S,4R,5R)-3-甲磺酰基氧-4-乙基-5-羟基-环己烷羧酸甲酯3.5.d(A=COOCH3,R=Et,L=OMs)
如2.5.a(R=H,L=OTos,A=COOCH3)所述,始于3.4.d(R=Et,L=OMs,A=COOCH3),产率为90%。IR(薄膜):3439,2957,1729,1438,1351,1277,1174,944,877,838,757,530厘米-1 1H-NMR(500MHz,in CDCl3,ppm):4.87(1H,t,J=3.1Hz),3.91(1H,t,J=2.9Hz),3.74(3H,s),3.00(3H,s),2.69(1H,bs),2.44(1H,bs),2.17(1H,bs),2.00(2H,m),1.84(2H,dt,J=14.3,4.7Hz),1.71(2H,m),1.03(3H,t,J=7.4Hz)。MS(m/z):281(M++1),263,249,236,200,184,166,141,125,111,87,78,55(基峰)。[α]D 25:+51.3(c=0.61,CHCl3)c)(1S,3S,4R,5R)-3-甲磺酰基氧-4-乙基-5-叔-丁基二苯基甲硅烷基氧-环己烷羧酸甲酯3.6.d(R=Et,L=OTos,P=TBDPS,A=COOCH3)
如2.8.a(R=H,L=OTos,P=TBDPS,A=COOCH3)所述,始于3.5.d(R=Et,L=OMs,A=COOCH3),产率为86%。IR(薄膜):2957,2857,1738,1588,1462,1427,1358,1276,1177,1111,1030,949,885,823,741,703,614厘米-1 1H-NMR(500MHz,in CDCl3,ppm):7.65-7.35(10H,m),4.44(1H,dt,J=12.2,4.6Hz),3.67(1H,dt,J=11.6,4.2Hz),3.63(3H,s),2.79(3H,s),2.09(1H,dt,J=12.9,3.9Hz),2.06(1H,m),2.02(2H,m),1.85(1H,m),1.79(1H,dd,J=12.8Hz),1.65(1H,dt,J=13.1,4.0Hz),1.49(1H,m),1.06(9H,s),1.04(3H,t,J=7.5Hz)。MS(m/z):461(M+-57),401,365,351,305,277,231,199,167,135,107(基峰)。[α]D 25:-2.3(c=0.35,CHCl3)d)(1S,2R,3aR,4aR)-3a-甲酯基-2-叔-丁基二苯基甲硅烷基氧-1-乙基-双环[3.1.0]己烷I.f.11(R=Et,P=TBDPS,A=COOCH3)。
如I.a.7(R=Me,P=TBDPS,A=COOCH3)所述,始于3.6.d(R=Et,L=OMs,P=TBDPS,A=COOCH3),产率为71%。IR(薄膜):2958,1723,1427,1366,1298,1224,1148,1111,1064,1028,926,821,740,610,507厘米-11H-NMR(500MHz,in CDCl3,ppm):7.63-7.35(10H,m),4.18(1H,t,J=5.9Hz),3.61(3H,s),2.26(1H,m),2.06(1H,m),1.98(1H,d,J=14.3Hz),1.92(1H,m),1.67(1H,t,J=4.3Hz),1.48(2H,m),1.36(1H,dd,J=8.7,3.9Hz),1.05(9H,s),0.89(3H,J=7.4Hz)。MS(m/z):422(M+,2),391(4),365(M+-57,40),337(8),287(12),259(10),225(8),199(65),135(100),105(38)。[α]D 25:+28.4(c=0.75,CHCl3)实施例35:(1R,2S,3aS,4aR)-3a-甲酯基-2-叔-丁基二苯基甲硅烷基氧-1-甲基-双环[3.1.0]己烷:I.e.1(R=Me,P=TBDPS,A=COOCH3)。a)(1S,3S,4R,5S)-3-叔-丁基二苯基甲硅烷基氧-4-甲基-5-羟基-环己烷羧酸甲酯3.2.c(R=Me,P=TBDPS,A=COOCH3)。
历时4分钟,将DIAD(偶氮二羧酸二异丙酯;412微升,2.092毫摩尔)逐滴加入-38℃下溶于THF的2.2.c(R=Me,P=TBDPS,A=COOCH3)(167毫克,0.392毫摩尔),20吡啶甲酸(257毫克,2.092毫摩尔)和三苯基膦(548毫克,2.092毫摩尔)的溶液中。搅拌所得溶液4.5小时,并隔夜温热至室温。将混合物倾入水和EtOAc(50毫升:50毫升)中。分离有机相,用EtOAc(3×50毫升)萃取水层,以MgSO4干燥。残余物经HPLC(异辛烷/EtOAc 98∶2)分离,得无色油的(4S,6S)-4-羧甲氧基-6-叔-丁基二苯基甲硅烷基氧-1-甲基环己烯(142毫克,88.8%)。IR(薄膜):2953,2856,1738,1428,1247,1168,1111,1068,999,893,820,741,702,614厘米-11H-NMR(500MHz,in CDCl3,ppm):7.71(4H,m),7.43(2H,m),7.38(4H,m),5.39(1H,m),4.25(1H,bs),3.60(3H,s),2.39(1H,m),2.19(1H,m),2.13(1H,m),2.04(1H,m),1.75(1H,dd,J=22.3,12.5Hz),1.66(3H,bs),1.08(9H,s)。MS(m/z):387(1),361(1),351(75),319(5),273(5),273(5),213(100),183(70),137(65),105(30),77(85)。[α]D 25:+81.9(c=1.91,CHCl3)
将甲硼烷-THF络合物溶液(1.0M,325微升,0.325毫摩尔,1.5当量)逐滴加入0℃下溶于2毫升的双(2-甲氧乙)醚的该环己烯(110毫克,0.27毫摩尔)的搅拌溶液中。0℃下搅拌所得溶液4小时,移除THF,并添加TAO(三甲胺N-氧化物,90毫克,0.81毫摩尔)。加热并回流该混合物2小时。冷却所得混合物至室温,用EtOAc(4×40毫升)萃取,并以MgSO4干燥。残余物于硅胶上进行快速层析予以分离,然后以HPLC(环己烯/EtOAc 9∶1)纯化,得无色油的3.2.c(R=Me,P=TBDPS,A=COOCH3)(46克,40.5%)。IR(薄膜,厘米-1):3453,2954,2858,1737,1462,1428,1379,1272,1195,1111,1032,934,823,702。1H-NMR(500MHz,in CDCl3,ppm):7.66(4H,m),7.42(2H,m),7.38(4H,m),4.17(1H,dt,J=10.7,4.7Hz),3.88(1H,bs),3.62(3H,s),2.61(1H,m),1.85-1.65(5H,m),1.06(9H,s),0.96(3H,d,J=7.2Hz)。[α]D 25:+39.4(c=0.95,CHCl3)b)(1S,3S,4R,5S)-3-叔-丁基二苯基甲硅烷基氧-5-甲磺酰基-4-甲基-环己烷羧酸甲酯:3.3.c(R=Me,L=OMs,P=TBDPS,A=COOCH3)
如3.4.d(R=Et,L=OMs,A=COOCH3)所述,始于3.2.c(R=Me,P=TBDPS,A=COOCH3),产率为84.5%。IR(薄膜):2952,1732,1470,1427,1357,1275,1177,1112,1029,929,904厘米- 11H-NMR(500MHz,in CDCl3,ppm):7.65(4H,t,J=8.0Hz),7.40(6H,m),4.80(1H,bs),4.06(1H,m),3.65(3H,s),2.70(3H,s),2.58(1H,m),2.04(1H,bs),1.98-1.76(4H,m),1.06(9H,s),1.03(3H,d,J=7.2Hz)。[α]D 25:+30.3(c=0.52,CHCl3)c)(1R,2S,3aR,4aR)-3a-甲酯基-2-叔-丁基二苯基甲硅烷基氧-1-甲基-双环[3.1.0]己烷I.e.1(R=Me,P=TBDPS,A=COOCH3)
如I.a.7(R=Me,P=TBDPS,A=COOCH3)所述,始于3.3.c(R=Me,L=OMs,P=TBDPS,A=COOCH3),产率为68.8%。IR(薄膜):2951,1725,1428,1259,1238,1111,880,814,742,702厘米-11H-NMR(500MHz,in CDCl3,ppm):7.63(4H,m),7.45-7.35(6H,m),3.84(1H,m),3.64(3H,s),2.23(1H,m),2.02(1H,m),1.93(1H,m),1.60(1H,m),1.17(1H,m),1.04(12H,bs),0.56(1H,m)。实施例36:(2R,3aS,4aS)-2-甲基-2-羟基-3a-羟甲基-双环[3.1.0]己烷:I.i.1(A=CH2OH,R1=Me:流程4)a)(2R,3aS,4aS)-2-羟基-3a-[(酰基氧)甲基]-双环[3.1.0]己烷:4.1
将苯甲酰氯逐滴加到0℃下溶于CH2Cl2(50毫升)的I.a.5(R=H,P=TBDPS,A=CH2OH)(4.451克,12.15毫摩尔)、DMAP(250毫克,2.27毫摩尔)和Et3N(16.5毫升,121.1毫摩尔)的溶液中。室温下搅拌该混合物22小时,并用70毫升的CH2Cl2稀释该溶液。分离有机相,用盐水(3×100毫升)清洗,并以MgSO4干燥。残余物利用快速层析(硅胶,异辛烷/EtOAc:100∶2.5)纯化,得无色油的对应苯甲酸酯(5.51克,96.5%)。将TBAF(14毫升,14毫摩尔,THF中1M)逐滴加到溶于THF(40毫升)中的该苯甲酸酯(2.22克,4.72毫摩尔)的溶液中,并于室温下搅拌所得溶液14小时。真空下蒸发溶剂。使残余物通过短的硅胶柱(异辛烷/EtOAc:7∶3)。粗产物经HPLC(异辛烷/EtOAc:7∶3)纯化,得无色油的化合物4.1(1.03克,94.0%)。IR(薄膜):3413.8,2928.3,1714.1,1602.1,1452.1,1277.5,1115.1,1070.0,958.3,808.3,711.5厘米-11H-NMR(500MHz,in CDCl3,ppm):8.06(2H,d,J=7.8Hz),7.56(1H,t,J=7.3Hz),7.45(1H,t,J=7.7Hz),4.48(1H,m),4.34(2H,dd,J=19.4,11.5Hz),2.23(2H,m),1.94(1H,d,J=14.0Hz),1.78(1H,d,J=14.2Hz),1.38(1H,ddd,J=8.3,4.3,4.3Hz),1.30(1H,bs),1.06(1H,t,J=4.4Hz),0.75(1H,m)MS(m/z):232(M+,1),214(1),199(1),189(1),161(1),149(1),127(1),110(13),105(100),77(43),67(14)。[α]D 25:-27.96(c=1.47,CHCl3)。b)(3aS,4aS)-3a-[(苯甲酰基)甲基]-双环[3.1.0]己烷-2-酮:4.2
将二铬酸酯吡啶鎓(PDC,1.072克,4.97毫摩尔)加入溶于CH2Cl2(30毫升)中的醇4.1(209毫克,0.904毫摩尔)的溶液中,并于室温下搅拌该混合物16小时。所得溶液直接经快速层析(硅胶管柱3×15厘米)(异辛烷/EtOAc:9∶1至8∶2)纯化,得无色油的化合物4.2(197毫克,95%)。IR(薄膜):1745.0,1715.9,1451.2,1355.4,1272.1,1155.7,1111.3,1069.9,711.0厘米-11H-NMR(500MHz,in CDCl3,ppm):8.05(2H,d,J=8.9Hz),7.58(1H,t,J=7.4Hz),7.46(2H,t,J=7.6Hz),4.41(2H,dd,J=29.6,12.7Hz),2.75(2H,m),2.41(1H,d,J=9.0Hz),2.28(1H,d,J=9.3Hz),1.68(1H,m),1.10(1H,t,J=7.0Hz),0.37(1H,t,J=5.1Hz)。MS(m/z):230(M+,1),212(1),202(6.9),183(1),161(1),149(1),125(1),106(13),105(100),77(46),51(20)。[α]D 25:-36.50(c=4.07,CHCl3)c)(2R,3aS,4aS)-2-甲基-2-羟基-3a-羟甲基-双环[3.1.0]己烷I.i.1(R1=Me,A=CH2OH)
-78℃下,历时5分钟将溶于Et2O(1.5毫升,3.0M)中的MeMgBr溶液逐滴加入溶于THF(4毫升)中的酮4.2(120毫克,0.52毫摩尔)的溶液中。于此温度下搅拌该所得混合物6小时,然后使其隔夜温热至室温。添加饱和的NH4Cl含水-冰溶液(0.2毫升)以骤冷该反应。使该混合物通过一含MgSO4的短的硅胶柱。残余物经HPLC(异辛烷/EtOAc:5∶5)分离,得白色固体的化合物I.i.1(R1=Me,A=CH2OH)(55毫克,74%)。IR(薄膜):3288.4,2931.3,2858.5,1459.1,1370.2,1260.7,1183.9,1135.7,1111.5,1064.0,1016.0,922.6厘米-11H-NMR(500MHz,in CDCl3,ppm):3.58(2H,s),2.08(1H,d,J=13.7Hz),2.03(1H,dd,J=13.8,5.0Hz),1.88(1H,d,J=13.7Hz),1.76(1H,d,J=13.8Hz),1.34(3H,s),1.29(1H,bs),1.21(1H,m),1.14(1H,t,J=4.3Hz),1.11(1H,s),0.57(1H,dd,J=8.4,4.5Hz)。MS(m/z):124(2),109(6),93(12),81(12),71(10),67(10),55(11),43(100)。[α]D 25:-33.10(c=1.17,MeOH)实施例37:(2R,3aS,4aS)-2-甲基-2-羟基-3a-甲酰基-双环[3.1.0]己烷I.i.2(R1=Me,A=CHO)
-15℃下,将溶于DMSO:CH2Cl2(500微升:250微升)和Et3N(2.5当量,120微升)的I.i.1(R1=Me,A=CH2OH)(1当量,50毫克,35微摩尔)的溶液加入溶于DMSO:CH2Cl2(500微升:250微升)和Et3N(2.5当量,120微升)的SO3-吡啶络合物(2.5当量,140毫克)的溶液中。-10℃至-5℃下搅拌1小时后,将该混合物倾入Et2O:盐水中。有机层以(MgSO4)干燥。溶剂蒸发后,残余物利用柱层析(Et2O∶异辛烷1∶1至Et2O∶异辛烷∶甲醇:CH2Cl2100∶100∶1∶20)纯化,得无色油的I.i.2(R1=Me,A=CHO)(37毫克,75%)。IR(薄膜):3441,2929,1694,1435,1258,1105,1049,963,893厘米-1 1H-NMR(500MHz,in CDCl3,ppm):8.81(1H,s),2.47(1H,d,J=14Hz),2.03(2H,m),1.91(1H,t,J=5Hz),1.88(1H,d,J=13Hz),1.81(1H,d,J=14Hz),1.49(1H,ddt,J=9,5,1Hz),1.36(3H,s)。[α]D 25:-79.7(c=1.22,CHCl3)实施例38:(2R,3aS,4aS)-2-乙基-2-羟基-3a-羟甲基-双环[3.1.0]己烷I.i.3(A=CH2OH,R1=Et)(流程4)
如I.i.1(R1=Me,A=CH2OH)所述,始于4.2,产率为66.6%。IR(薄膜):3275.4,2921.3,2858.5,1431.8,1284.3,1237.3,1122.3,1068.0,1027.8,930.7厘米-1 1H-NMR(500MHz,in CDCl3,ppm):3.59(2H,d,J=5.6Hz),2.03(1H,d,J=13.6Hz),1.99(1H,dd,J=13.9,4.9Hz),1.83(1H,d,J=13.7Hz),1.72(1H,d,J=13.8Hz),1.55(2H,q,J=6.4),1.23(2H,m),1.16(1H,t,J=4.2Hz),1.04(1H,s),0.92(3H,t,7.4Hz),0.54(1H,dd,J=8.4,4.3Hz)。MS(m/z):138(2),123(4),109(12.9),97(2),91(6),79(20),72(6),67(12.9),57(100),43(8)。[α]D 25:-34.90(c=0.928,MeOH)实施例39:(2R,3aS,4aS)-2-乙基-2-羟基-3a-甲酰基-双环[3.1.0]己烷I.i.4(A=CHO,R1=Et)
如I.i.2(R1=Me,A=CHO)所述,始于I.i.3(R1=Et,A=CH2OH),产率为50%。IR(薄膜):3418,2966,1689,1114,1057,982,632厘米-11H-NMR(500MHz,in CDCl3,ppm):8.80(1H,s),2.09(2H,m),1.92(1H,t,J=5.0Hz),1.83(1H,d,J=13.3Hz),1.69(1H,d,J=10.0Hz),1.57(2H,m),1.49(1H,m),1.15(1H,s),0.93(3H,t,J=7.4Hz)。[α]D 25:-68.1(c=0.30,CHCl3)实施例40:(2R,3aS,4aS)-2-[(叔-丁基二苯基甲硅烷基氧)-甲基]-3a-羟甲基-双环[3.1.0]己烷I.j.1(A=CH2OH,P=TBDPS)(流程4)a)(3aS,4aS)-2-亚甲基-3a-[(苯甲酰基氧)甲基]-双环[3.1.0]己烷4.3
历时10分钟,将TiCl4逐滴加入-78℃下溶于CH2Br2(2.02毫升)和THF(40毫升)的锌粉(5.75克)的搅拌悬浮液中。将该混合物温热至8℃,并于此温度下搅拌72小时,得该活性物种的粘稠的灰色浆液(Lombardo试剂)。
室温下将部分的Lombardo试剂加入溶于CH2Cl2(8毫升)的酮4.2(98毫克,0.426毫摩尔)溶液中,直到该酮消失为止(TLC)。该反应混合物用Et2O(40毫升)稀释,添加饱和的HaHCO3,并持续搅拌30分钟,获得两澄清相。水相以Et2O(3×25毫升)和CH2Cl2(2×25毫升)萃取,并以MgSO4干燥。残余物经快速层析(硅胶∶戊烷/醚:100∶1)纯化,得无色油的化合物4.3(66毫克,67.9%)。IR(薄膜):2925.8,1715.6,1451.5,1269.7,1111.0,1069.0,1026.1,741.9,710.7厘米-11H-NMR(500MHz,in CDCl3,ppm):8.07(2H,d,J=7.3Hz),7.56(1H,t,J=7.4Hz),7.45(2H,t,J=7.7Hz),4.81(2H,d,J=12.4Hz),4.38(2H,s),2.68(2H,m),2.43(1H,d,J=15.4Hz),2.28(1H,d,J=15.6Hz),1.36(1H,m),0.68(1H,t,J=6.5Hz),0.39(1H,t,J=4.5Hz)。MS(m/z):228(M+,1),213(1),199(1),181(2),169(1),141(1),123(5),105(100),91(88),77(57),65(7),51(20)。[α]D 25:-51.90(c=1.73,CHCl3)b)(2R,3aS,4aS)-2-[(叔-丁基二苯基甲硅烷基氧)-甲基]-3a-羟甲基-双环[3.1.0]己烷I.j.1(A=CH2OH,P=TBDPS)和(2S,3aS,4aS)-2-[(叔-丁基二苯基甲硅烷基氧)-甲基]-3a-羟甲基-双环[3.1.0]己烷I.k.1(A=CH2OH,P=TBDPS)
将BH3·THF加入-5℃下溶于THF(6毫升)的链烷烯4.3(49毫克,0.21毫摩尔)的溶液中,并于此温度下搅拌该反应混合物3.5小时。反应用饱和含水的NaHCO3(3.9毫升)和H2O2(30%)(3.9毫升)骤冷。将该反应溶液温热至室温,并搅拌1.5小时。然后用Et2O(2×20毫升)和EtOAc(2×20毫升)萃取该溶液。合并的有机层以MgSO4干燥并浓缩。使残余物通过短的硅胶柱,粗产物经HPLC(异辛烷/EtOAc:7∶3)纯化,得无色油的差相异构的羟基化产物的混合物(2R∶2S;比例,75∶25,39毫克,73.7%)。
0℃下将TBDPSCl逐滴加入溶于DMF(3毫升)中的该混合物(35毫克,0.142毫摩尔),咪唑(49毫克,0.720毫摩尔,5当量)和DMAP(7.8毫克,0.064毫摩尔,0.45当量)的溶液中,室温下搅拌该所得混合物19小时。将该反应溶液倾入Et2O/水(50毫升/40毫升)中,并用Et2O(3×20毫升)和EtOAc(2×20毫升)萃取水相。合并的有机层以MgSO4干燥并浓缩。残余物经快速层析(硅胶,异辛烷/EtOAc:100∶2)纯化,得无色油的对应的甲硅烷基醚(56毫克,81.3%)。
将K2CO3(50毫克,0.505毫摩尔)加入室温下溶于MeOH(6毫升,包括0.2毫升的H2O)中的该混合物(50毫克,0.106毫摩尔)的搅拌溶液中。室温下搅拌该混合物20小时,滤出固体,用Et2O(50毫升)稀释滤液,用盐水(2×20毫升)清洗,并以MgSO4干燥,以及蒸发溶剂。残余物通过短的硅胶柱并经HPLC(异辛烷/EtOAc:75∶25)分离,得无色油的化合物I.J.1(A=CH2OH,P=TBDPS)(24毫克,61.8%)和I.k.1(A=CH2OH,P=TBDPS)(8毫克,20.4%)。MS(m/z):379(M+-1,1),305(1),275(2),229(2),199(47)181(7),107(100),79(53)。化合物I.j.1(A=CH2OH,P=TBDPS)IR(薄膜):3342.5,2930.3,2858.0,1471.8,1427.7,1389.8,1111.9,1008.2,823.7,739.7,701.6厘米-11H-NMR(500MHz,in CDCl3,ppm):7.64(4H,d,J=7.8Hz),7.45-7.35(6H,m),3.54(2H,dd,J=14.4,11.2Hz),3.41(2H,d,J=7.4Hz),2.61(1H,m),2.19-2.09(2H,m),1.64(1H,dd,J=13.5,4.8Hz),1.47(1H,dd,J=13.6,4.6Hz),1.26(1H,bs),1.18(1H,dt,J=8.6,4.3,4.3Hz),1.02(9H,s),0.62(1H,dd,J=8.4,4.7Hz),0.35(1H,t,J=4.4Hz)。[α]D 25:-13.05(c=1.40,CHCl3)化合物I.k.1(A=CH2OH,P=TBDPS)IR(薄膜):3342.5,2929.9,2856.7,1471.6,1427.7,1388.8,1111.9,1086.1,1031.5,1008.5,823.7,739.3,701.5厘米-11H-NMR(500MHz,in CDCl3,ppm):7.64(4H,d,J=6.7Hz),7.39(6H,m),3.64(1H,d,J=11.2Hz),3.57(3H,d,J=7.8Hz),1.97-1.87(2H,m),1.80(1H,dd,J=12.3,7.0Hz),1.56(2H,m),1.22(1H,m),1.15(1H,ddd,J=8.3,4.1,4.1Hz),1.02(9H,s),0.52(1H,t,J=4.3Hz),0.41(1H,dd,J=8.0,5.0Hz)。[α]D 25:-6.16(c=1.65,CHCl3)实施例41:(2R,3aS,4aS)-2-[(叔-丁基二苯基甲硅烷基氧)-1-甲基]-3a-甲酰基-双环[3.1.0]己烷I.j.2(A=CHO,P=TBDPS)(流程4)
将溶于CH2Cl2(100微升)中的DMSO(36.6微升,0.515毫摩尔)逐滴添加于-78℃,溶于CH2Cl2(1毫升)的(COCl)2(30微升,0.344毫摩尔)的溶液中。-78℃下搅拌该混合物20分钟,接着添加溶于CH2Cl2(0.5毫升)中的I.j.1(A=CH2OH,P=TBDPS)(14毫克,0.37毫摩尔)。于-78℃下搅拌所得白色悬浮液20分钟,逐滴添加Et3N(0.2毫升,1.435毫摩尔),并持续搅拌20分钟,然后历时1小时将混合物温热至室温。反应藉添加冷水而骤冷,并分离有机相,水层用Et2O(3×50毫升)萃取,并以MgSO4干燥,残余物利用HPLC(己烷/EtOAc 95∶5)分离,得无色油的化合物I.j.2(A=CHO,P=TBDPS)(4毫克,28.7%)。IR(薄膜):2931,2858,1699,1428,1112,824,740,613厘米-11H-NMR(500MHz,in CDCl3,ppm):8.83(1H,s),7.63(4H,d,J=7.4Hz),7.68-7.35(6H,m),3.43(2H,d,J=5.5Hz),2.68(2H,m),2.18(1H,m),2.02(1H,m),1.59(1H,m),1.51(1H,d,J=8.0Hz),1.25(1H,bs),1.02(9H,s),0.90(1H,m)。MS(m/z):337(4),307(2),293(4),259(2),217(9),199(54),183(20),135(24),105(30),93(100)[α]D 25:-52.6(c=0.27,CHCl3)。实施例42:(2S,3aS,4aS)-2-[(叔-丁基二苯基甲硅烷基氧)-1-甲基]-3a-甲酰基-双环[3.1.0]己烷I.k.2(A=CHO,P=TBDPS)(流程4)
如I.j.2(A=CHO,P=TBDPS)所述,始于I.k.1(A=CH2OH,P=TBDPS),产率为92.8%。IR(薄膜):2932,2858,1703,1471,1427,1112,824,741,702厘米-11H-NMR(500MHz,in CDCl3,ppm):8.96(1H,s),7.63(4H,m),7.48-7.35(6H,m),3.58(2H,m),2.05-1.88(5H,m),1.62(1H,m),1.34(1H,dd,J=8.5,5.5Hz),1.20(1H,t,J=5.4Hz),1.02(9H,s)。MS(m/z):337(15),259(14),231(30),199(100),137(20),93(60),77(70)。实施例43:(2S,3aS,4aS)-2-甲基-2-羟基-3a-羟甲基-双环[3.1.0]己烷I.l.1(A=CH2OH,R1=CH3)(流程4)
将溶于THF(1.5毫升)的烯羟4.3(164毫克,0.719毫摩尔)的溶液逐滴加入溶于水(1.5毫升)的Hg(OAc)2(350毫克,1.10毫摩尔)的溶液中。室温下搅拌该混合物30分钟后,添加NaOH的水溶液(1.5毫升,3N),接着添加溶于3N NaOH溶液(1.5毫升)中0.5M的NaBH4。室温下搅拌所得混合物2小时,直到大部分的汞凝固为止。过滤固体。滤液以Et2O(2×30毫升)和EtOAc(2×30毫升)萃取。将K2CO3(500毫克,5.05毫摩尔)和MeOH(2毫升)加入残余物中。室温下搅拌该混合物20小时。将该反应混合物通过一短的硅胶柱。粗产物以HPLC(环己烷/EtOAc:62∶45)纯化,得无色油的化合物I.1.1(A=CH2OH,R1=Me)和I.i.1(A=CH2OH,R1=Me)(比例为3∶1,68毫克,66.6%)。IR(薄膜):3288.4,2931.3,2858.5,1459.1,1370.2,1260.7,1183.9,1135.7,1111.5,1064.0,1016.0,922.6厘米-11H-NMR(500MHz,in CDCl3,ppm):4.02(1H,d,J=10.7Hz),3.07(1H,d,J=10.7Hz),2.05(2H,m),1.65(1H,bs),1.52(1H,d,J=12.8Hz),1.37(3H,m),1.25(3H,s),1.05(1H,dd,J=8.0,4.8Hz),0.49(1H,t,J=4.3Hz)。实施例44:(2S,3aS,4aS)-2-甲基-2-羟基-3a-甲酰基-双环[3.1.0]己烷I.1.2(A=CHO,R1=Me)(流程4)
如I.j.2(A=CHO,P=TBDPS)所述,始于I.l.1(A=CH2OH,R1=Me),产率为48.2%。IR(薄膜):3429,2967,2929,1691,1377,1249,1102,1036,668厘米-11H-NMR(500MHz,in CDCl3,ppm):8.90(1H,s),2.66(1H,dd,J=14.3,2.4Hz),1.98(2H,m),1.88(1H,dd,J=8.5,5.2Hz),1.65(1H,bs),1.51(2H,t,J=14.2Hz),1.31(3H,s),1.14(1H,t,J=5.2Hz)。MS(m/z):140(M+,2),123(10),111(10),97(15),85(25),71(25),67(30),48(100)。[α]D 25:-99.3(c=1.06,CHCl3)实施例45:(2S,3aS,4aS)-2-羟基-2-羟甲基-3a-[(苯甲酰基氧)甲基]-双环[3.1.0]己烷I.m(A=CH2OCOPh)(流程4)
0℃下将OsO4水溶液(121微升,0.02毫摩尔,4重量%,0.07当量)加入溶于丙酮/水(5毫升:2.5毫升)的4.3(65毫克,0.285毫摩尔)和NMO(48毫克,0.344毫摩尔,1.21当量)的溶液中。室温下搅拌该所得溶液39小时,然后添加连二硫酸钠(70毫克)和硅酸镁载体(150毫克)。将黑色沉淀物过滤移除,并用Et2O(200毫升)冲洗。真空下蒸发溶剂,将残余物溶解于含少量丙酮(100∶5)的Et2O中,并经过硅酸镁载体加以过滤。粗混合物经HPLC(环己烷/EtOAc:7∶3)分离,紧接少量的C-2差向异构体后,得到主产物无色油的化合物I.m(化合物I.m与C-2的比例为85∶15),合并产率为64%。IR(薄膜):3385.5,2927.8,1713.7,1451.6,1315.2,1274.6,1114.7,1070.3,1026.2,934.5,711.5厘米-11H-NMR(500MHz,in CDCl3,ppm):8.06(2H,d,J=7.3Hz),7.57(1H,t,J=7.4Hz),7.46(2H,t,J=7.6Hz),4.48(1H,d,J=11.5Hz),4.21(1H,d,J=11.5Hz),3.49((2H,m),2.58(1H,s),2.36(1H,s),2.16(1H,d,J=14.6Hz),2.12(1H,dd,J=14.2,6.3Hz),1.94(1H,t,J=14.1Hz),1.89(1H,t,J=14.1Hz),1.65(1H,d,J=14.2Hz),1.07(1H,dd,J=8.4,5.3Hz),0.47(1H,t,J=4.6Hz)。MS(m/z):262(M+,1),244(1),232(3),213(4),203(3),176(1),163(4),145(4),123(16),105(100),77(52),67(13)。[α]D 25:-11.86(c=1.53,CHCl3)。

Claims (12)

1.一种制备式(I)化合物的方法,
其中:
-A为基团-CH2OH,-CH2-OCOR′,-COR″,-CSR″或乙炔基;
-R为氢或(C1-C6)烷基;
-R1为氢,(C1-C6)烷基或基团-(CH2)n-OP;
-R2为氢或基团-OP;
-R′为(C1-C6)烷基或苯基;
-R″为氢,羟基,(C1-C6)烷基,(C1-C6)烷氧基,(C1-C6)烷硫基,或二(C1-C3)烷氨基;
-P为氢;(C1-C6)烷酰基;苯甲酰基,其中苯基可被(C1-C4)烷基,卤素或硝基任选取代;(C1-C6)烷氧基羰基;基团-Si(R3)3,其中每一R3各自代表(C1-C6)烷基或苯基;单-或双-(C1-C6)烷氧基(C1-C6)烷基;四氢呋喃基;或四氢吡喃基;
-n为0,1,2,3或4,
此方法包含的步骤有:
(i)式1化合物与脂酶在链烷酸乙烯酯或酸酐中反应,
其中A为(C1-C6)烷氧羰基或二(C1-C3)烷基氨基羰基,且R如上定义,和(ii)所得的式2或2′化合物转化为相应的式(I)化合物,
其中Z为烷基,优选为(C1-C3)烷基。
2.根据权利要求1的方法,其包括将其中进行反应的化合物1中A为甲氧羰基。
3.根据权利要求1或2的方法,其中链烷酸乙烯酯选自乙酸乙烯酯,丙酸乙烯酯和丁酸乙烯酯。
4.根据权利要求1到中任一项的方法,其中酸酐选自乙酸酐,丙酸酐和丁酸酐。
5.根据权利要求1到4中任一项的方法,其中脂酶选自来自萤光假单孢菌的脂酶(SAM II)、来自希林瓜氏念珠菌的脂酶(CCL)、来自猪胰腺的脂酶(PPL),来自葱头假单孢菌的脂酶(PSL)、来自Gotrichum candidum的脂酶(GCL)。
6.根据权利要求1到5中任一项的方法,其中步骤(i)是于10到40℃的温度范围中进行。
7.根据权利要求1到6中任一项的方法,其中步骤(i)进行6到72小时。
8.根据权利要求1到7中任一项的方法,其中步骤(ii)是经一个或数个的以下的步骤:
-羟基的保护,
-酯的皂化,
-3-或5-羟基的转化,
-离去基的形成,
-含碱环的闭环反应,形成所需的双环[3.1.0]己烷,
-烷氧羰基或氨基甲酰基官能基转化为所需的取代基A。
9.一种式(I)化合物:
Figure A0081849800041
其中:
-A为基团-CH2OH,-CH2-OCOR′,-COR″,-CSR″或乙炔基;
-R为氢或(C1-C6)烷基;
-R1为氢,(C1-C6)烷基或基团-(CH2)n-OP;
-R2为氢或基团-OP;
-R′为(C1-C6)烷基或苯基;
-R″为氢,羟基,(C1-C6)烷基,(C1-C6)烷氧基,(C1-C6)烷硫基,或二(C1-C3)烷氨基;
-P为氢;(C1-C6)烷酰基;苯甲酰基,其中苯基可被(C1-C4)烷基,卤素或硝基任选取代;(C1-C6)烷氧羰基;基团-Si(R3)3,其中每一R3各自代表(C1-C6)烷基或苯基;单-或二-(C1-C6)烷氧基(C1-C6)烷基;四氢呋喃基;或四氢吡喃基;
-n为0,1,2,3或4,
其条件为当化合物(I)的构型为2S,3aS,4aS,A为甲酰基,羟甲基,乙炔基或甲氧羰基,且R和R2均为氢时,R1不为基团-OSi(R3)3
10.一种式(II)的非对映异构化合物(II):
其中:
-A和R如权利要求9对(I)的定义
-R4和R5每一各自代表如权利要求9对(I)定义的基团P,或甲磺酰基,甲苯磺酰基,对溴苯磺酰基或三氟甲磺酰基,
其条件为当A为甲氧碳基且R为氢时,化合物(II)的构型不为1R,3R,5R。
11.一种式2或2′化合物:
其中
-A和R如权利要求9对(I)的定义;
-Z为烷基。
12.一种式1化合物:
Figure A0081849800052
其中A如权利要求9中对(I)的定义,且R为(C1-C6)烷基。
CNB008184984A 1999-12-08 2000-12-04 维生素d前体,及其制备方法与中间体 Expired - Lifetime CN1210282C (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/456,509 US6191292B1 (en) 1999-12-08 1999-12-08 Precursors of the A-ring of vitamin D and method and intermediates for the preparation thereof
EP99403065.8 1999-12-08
EP99403065A EP1106618A1 (en) 1999-12-08 1999-12-08 Precursors of the A-ring of vitamin D, and method and intermediates for the preparation thereof

Publications (2)

Publication Number Publication Date
CN1425019A true CN1425019A (zh) 2003-06-18
CN1210282C CN1210282C (zh) 2005-07-13

Family

ID=26153704

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB008184984A Expired - Lifetime CN1210282C (zh) 1999-12-08 2000-12-04 维生素d前体,及其制备方法与中间体

Country Status (23)

Country Link
US (1) US6191292B1 (zh)
EP (2) EP1106618A1 (zh)
CN (1) CN1210282C (zh)
AT (1) ATE254623T1 (zh)
AU (1) AU782089B2 (zh)
BR (1) BRPI0016184B8 (zh)
CA (1) CA2393617C (zh)
CZ (1) CZ303421B6 (zh)
DE (1) DE60006714T2 (zh)
DK (1) DK1235832T3 (zh)
EE (1) EE05326B1 (zh)
ES (1) ES2210022T3 (zh)
HU (1) HU229508B1 (zh)
IL (1) IL150089A0 (zh)
MX (1) MXPA01012904A (zh)
NO (1) NO327848B1 (zh)
NZ (1) NZ519391A (zh)
PL (1) PL201691B1 (zh)
PT (1) PT1235832E (zh)
RU (1) RU2247710C2 (zh)
TW (1) TWI290928B (zh)
WO (1) WO2001042251A1 (zh)
ZA (1) ZA200204594B (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL2360145T3 (pl) 2010-01-26 2012-08-31 Hybrigenics Sa Nowy sposób izomeryzacji skondensowanych struktur bicyklicznych oraz wytwarzania zawierających te struktury analogów witaminy D
EP2793622B1 (de) 2011-12-21 2019-02-27 Merck Patent GmbH Verwendung von cyclohexanolderivaten als antimikrobielle wirkstoffe

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0972762B1 (en) * 1993-07-09 2003-10-01 Laboratoire Theramex Novel structural analogues of vitamin D

Also Published As

Publication number Publication date
ATE254623T1 (de) 2003-12-15
EE05326B1 (et) 2010-08-16
TWI290928B (en) 2007-12-11
AU782089B2 (en) 2005-06-30
PT1235832E (pt) 2004-04-30
EP1106618A1 (en) 2001-06-13
NZ519391A (en) 2003-08-29
RU2247710C2 (ru) 2005-03-10
NO20022690D0 (no) 2002-06-06
DE60006714T2 (de) 2004-12-02
HUP0204521A3 (en) 2005-03-29
IL150089A0 (en) 2002-12-01
WO2001042251A1 (en) 2001-06-14
EP1235832A1 (en) 2002-09-04
BRPI0016184B8 (pt) 2021-05-25
BRPI0016184B1 (pt) 2015-07-14
EP1235832B1 (en) 2003-11-19
CA2393617A1 (en) 2001-06-14
ZA200204594B (en) 2003-10-29
HU229508B1 (en) 2014-01-28
BR0016184A (pt) 2002-08-20
CZ303421B6 (cs) 2012-09-05
US6191292B1 (en) 2001-02-20
DK1235832T3 (da) 2004-03-22
MXPA01012904A (es) 2002-11-07
HUP0204521A2 (en) 2003-05-28
AU2005101A (en) 2001-06-18
CN1210282C (zh) 2005-07-13
PL201691B1 (pl) 2009-04-30
DE60006714D1 (de) 2003-12-24
CA2393617C (en) 2010-03-23
ES2210022T3 (es) 2004-07-01
PL356389A1 (en) 2004-06-28
NO327848B1 (no) 2009-10-05
NO20022690L (no) 2002-06-06
CZ20021977A3 (cs) 2002-10-16
EE200200294A (et) 2003-08-15

Similar Documents

Publication Publication Date Title
CN1200940C (zh) 新的三唑并嘧啶化合物
CN1043528C (zh) 用噁嗪酮制备紫杉酚的方法
CN1064958C (zh) 紫杉酚中间体的制备方法
CN1075718A (zh) 金属醇盐
CN1069028A (zh) 红豆杉醇侧链的不对称合成
CN1298711C (zh) 制备环氧三唑衍生物及其使用的中间体的方法
CN1878763A (zh) 抑制素制备方法
CN1268947A (zh) 制备作为蛋白酶抑制剂的4-羟基-2-氧-吡喃衍生物的新方法
CN1425019A (zh) 维生素d前体,及其制备方法与中间体
CN1029400C (zh) 侧链系维生素d衍生物的制备方法
CN101061121A (zh) 生产苯并[с]菲啶衍生物的方法
CN100347179C (zh) 经口给药用碳青霉素烯化合物的新的合成中间体及其制造方法
CN1014408B (zh) 制备4-卤代-2-羟亚氨基-3-氧代丁酸的方法
CN1243745C (zh) 选择性保护浆果赤霉素衍生物的方法及其在合成塔三烷中的应用
CN1108640A (zh) 1,3-双(三氟甲基)苯的锂化方法
CN1048982C (zh) 用金属烷氧化物和β-内酰胺半合成紫杉烷衍生物的方法
CN1156448C (zh) 3-甲基芬太尼衍生物的光学异构体、合成及它们镇痛活性
JPH06107592A (ja) 光学活性6−オキソ−3,5−ジヒドロキシヘキサン酸誘導体の製造方法
CN1495164A (zh) 制备手性内酯的方法
CN1847232A (zh) 2,3-二氢-3-羟甲基-[1,4]-苯并噁嗪衍生物及其制备方法
CN1304346C (zh) 光学活性2,3-联烯醇和联烯醇酯、合成方法及其用途
JP4970682B2 (ja) ビタミンd前駆物質、方法及び中間体
JP2958835B2 (ja) 4−(1−カルボキシアルキル)アゼチジン−2−オン誘導体の製造法
CN86106583A (zh) 抗菌素的制备方法
JP3883263B2 (ja) マクロカルパル類の不斉合成方法

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20050713