CN117050136A - Veratramine compound, preparation method and application thereof - Google Patents
Veratramine compound, preparation method and application thereof Download PDFInfo
- Publication number
- CN117050136A CN117050136A CN202311033271.2A CN202311033271A CN117050136A CN 117050136 A CN117050136 A CN 117050136A CN 202311033271 A CN202311033271 A CN 202311033271A CN 117050136 A CN117050136 A CN 117050136A
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- formula
- hydrogen
- scheme
- veratramine
- compound
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- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- -1 Veratramine compound Chemical class 0.000 title claims description 69
- MALFODICFSIXPO-UHFFFAOYSA-N Veratramin Natural products C=1C=C2C3CC=C4CC(O)CCC4(C)C3CC2=C(C)C=1C(C)C1NCC(C)CC1O MALFODICFSIXPO-UHFFFAOYSA-N 0.000 title claims description 68
- 150000001875 compounds Chemical class 0.000 claims abstract description 100
- MALFODICFSIXPO-KFKQDBFTSA-N veratramine Chemical class N([C@H]1[C@@H](C)C=2C(=C3C[C@@H]4[C@@]5(C)CC[C@H](O)CC5=CC[C@H]4C3=CC=2)C)C[C@@H](C)C[C@H]1O MALFODICFSIXPO-KFKQDBFTSA-N 0.000 claims abstract description 41
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims abstract description 25
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- 239000003112 inhibitor Substances 0.000 claims abstract description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 75
- 239000001257 hydrogen Substances 0.000 claims description 75
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 50
- 229910052736 halogen Inorganic materials 0.000 claims description 48
- 150000002367 halogens Chemical class 0.000 claims description 47
- 125000000217 alkyl group Chemical group 0.000 claims description 46
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- 229910052731 fluorine Inorganic materials 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 16
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- 125000006656 (C2-C4) alkenyl group Chemical group 0.000 claims description 11
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- C—CHEMISTRY; METALLURGY
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Abstract
The invention discloses veratramine compounds, a preparation method and application thereof. The invention provides veratramine compounds shown in a formula I, which can be used as a series of novel AP-1 inhibitors and used for preparing medicines for corresponding diseases. Preliminary activity researches show that the compound provided by the invention has strong activity of inhibiting proliferation of tumor cells; has the potential of preparing novel antitumor drugs and has better market prospect.
Description
The patent application is a divisional application of a patent application with the application number of 202010606717.6, the application date of the patent application is 2020, 6 and 29, and the patent application is named as a veratramine compound, a preparation method and application thereof.
Technical Field
The invention relates to veratramine compounds, a preparation method and application thereof.
Background
Malignant tumors are diseases that severely threaten human health and are characterized by clonal expansion of abnormal cells, manifested by uncontrolled proliferation, unresponsiveness to normal homeostatic signals, invasion and metastasis to adjacent tissues. Metastasis of malignant tumor cells to vital organs is the biggest obstacle to successful treatment of tumors and is also the leading cause of death in tumor patients. At present, malignant tumors are mainly treated by methods such as surgery, chemotherapy, radiotherapy and the like. Despite significant advances in surgical techniques and chemotherapy, current medical approaches are still unable to cure metastatic cancers, and the molecular mechanisms of tumor metastasis must be fully recognized for the development of new therapies.
For example, triple negative breast cancer is a disease seriously threatening the health of women, the current treatment means mainly uses chemotherapy, the toxic and side effects are large, and patients are easy to generate drug resistance, so that the development of effective targeted therapies is urgently needed in clinic.
AP-1 (activator protein-1, activator protein 1) is a transcriptional activator in cells. It responds to a variety of stimuli, including cytokines, growth factors, stress, bacterial and viral infections, by regulating the expression of genes; AP-1 thus controls many cellular processes, including differentiation, proliferation and apoptosis. AP-1 upregulates transcription of genes containing TPA DNA response element (TRE; 5 '-TGAG/CTCA-3'). AP-1 heterodimers are formed by leucine zippers and bind genes through specific conserved sequences to initiate expression of the genes.
AP-1 plays an important role in the formation and development of tumors, and it transduces growth signals to the nucleus through signal transduction pathways, resulting in overexpression of transforming genes involved in growth and malignancy in various cells, and has become one of the important targets for tumor treatment and preventive intervention. It was found that AP-1 is highly expressed in various malignant tumors such as breast cancer, hepatocellular carcinoma, skin cancer, and colorectal cancer. Although AP-1 is highly expressed in the occurrence and development of various cancers, no antitumor drug targeting the transcription factor AP-1 or its specific DNA binding sequence has been successfully marketed.
Drug design aiming at a DNA short nucleotide sequence is the most effective and challenging design strategy, and development of an AP-1 inhibitor taking DNA as a target point can not only promote research of a new target point of cancer, but also further explore drug design taking the DNA short nucleotide sequence as the target point.
A series of in vitro experiments showed that veratramine acts on AP-1 downstream signaling but does not interfere with EGF-induced cytoplasmic MAPK signaling cascades or other kinases involved in AP-1 activation, suggesting that gene regulation occurs only on a subset of genes controlled by AP-1. Animal experiments show that veratramine can inhibit the activation of an AP-1 reporter gene induced by ultraviolet rays in mice, and the veratramine can effectively prevent the occurrence of skin cancer induced by solar ultraviolet rays, so that the potential value of veratramine as an antitumor candidate drug is clarified
Disclosure of Invention
The invention aims to solve the problem that the existing veratramine compound has a single structure, and therefore, the invention provides a veratramine compound, a preparation method and application thereof. The veratramine compound provided by the invention has an inhibition effect on an AP-1 signal path.
The invention provides veratrame compounds shown in a formula I or pharmaceutically acceptable salts thereof:
Wherein,
is-> Representation ofOr a mixture thereof;
x is-CO-,(b-terminal represents the connection to the left carbon in formula I as shown above)
R 1 Is hydrogen, C 1 ～C 6 Alkyl or-CO-R 3 ；
R 2 Is hydroxy, amino, -O-R 4 、NH-COR 5 or-NH-CS-NH 2 ；
R 4 Is hydrogen or C 1 ～C 6 An alkyl group;
R 5 is amino or-O-R 7 ；
Y is-CO-,(end a represents a connection with tertiary carbon)
R 9 Is hydroxy or-O-CO-R 12 ，R 10 Is hydrogen; or R is 9 Is halogen, R 10 Hydrogen or halogen;
R 11 is hydroxyRadicals, amine radicals OR OR 14 ；
R is hydrogen, C 1 ～C 6 Alkyl, C 2 ～C 6 Alkenyl or-CO-R 13 ；
R 14 Is hydrogen or C 1 ～C 6 An alkyl group;
R 3 、R 7 、R 12 and R is 13 Independently C 1 ～C 6 An alkyl group;
the compound does not include veratramine.
In one embodiment, certain groups in the veratrame compound shown in formula I or a pharmaceutically acceptable salt thereof are defined as follows, and undefined groups are as described in any one of the previous embodiments: (hereinafter, abbreviated as "in a certain scheme"):
in one embodiment, R 1 is-CO-R 3 。
In one embodiment, R 1 Is C 1 ～C 4 Alkyl or-CO-R 3 。
In one embodiment, R 2 is-O-R 4 。
In one embodiment, R 2 is-O-R 4 or-NH-COR 5 。
In one embodiment, R 2 Is hydroxy, -O-R 4 or-NH-COR 5 。
In one embodiment, R is hydrogen, C 1 ～C 4 Alkyl, C 2 ～C 4 Alkenyl or-CO-R 13 。
In one embodiment, R is hydrogen, C 1 ～C 4 Alkyl or C 2- C 4 Alkenyl groups.
In one embodiment, R 9 Is hydroxy, R 10 Is hydrogen; or R is 9 Is halogen, R 10 Is halogen.
In one aspect, the method comprises, among other things,
is-> Representation->Or a mixture thereof;
x is-CO-,(b-terminal represents the connection to the left carbon in formula I as shown above)
R 1 Is hydrogen or-CO-R 3 ；
R 2 Is hydroxy, amino, -O-R 4 、NH-COR 5 or-NH-CS-NH 2 ；
R 4 Is hydrogen or C 1 ～C 6 An alkyl group;
R 5 is amino or-O-R 7 ；
Y is-CO-,(end a represents a connection with tertiary carbon)
R 9 Is hydroxy or-O-CO-R 12 ，R 10 Is hydrogen; or R is 9 Is halogen, R 10 Is halogen;
R 11 is hydroxy or-O-R 14 ；
R is hydrogen, C 1 ～C 6 Alkyl, C 2 ～C 6 Alkenyl or-CO-R 13 ；
R 14 Is hydrogen or C 1 ～C 6 Alkyl group
R 3 、R 7 、R 12 And R is 13 Independently C 1 ～C 6 An alkyl group;
the compound does not include veratramine.
In one aspect, the method comprises, among other things,
is-> Representation->Or a mixture thereof;
x is(b-terminal represents the connection to the left carbon in formula I as shown above)
R 1 is-CO-R 3 ；
R 2 is-O-R 4 ；
Y is(end a represents a connection with tertiary carbon)
R 9 Is hydroxy or-O-CO-R 12 ，R 10 Is hydrogen;
R 11 is-O-R 14 ；
R is hydrogen, C 1 ～C 4 Alkyl, C 2 ～C 4 Alkenyl or-CO-R 13 ；
R 14 Is hydrogen or C 1 ～C 4 Alkyl group
R 3 、R 4 、R 12 And R is 13 Independently C 1 ～C 4 An alkyl group;
the compound does not include veratramine.
In one aspect, the method comprises, among other things,
is->X is-CO->(b-terminal represents a bond to the left carbon in formula I as shown above) R 1 is-CO-R 3 ；
R 2 is-O-R 4 or-NH-COR 5 ；
R 5 is-O-R 7 ；
Y is(end a represents a connection with tertiary carbon)
R 9 Is hydroxy or-O-CO-R 12 ，R 10 Is hydrogen; or R is 9 Is halogen, R 10 Hydrogen or halogen;
r is hydrogen or C 2 ～C 4 Alkenyl groups;
R 3 、R 4 、R 12 and R is 13 Independently C 1 ～C 4 An alkyl group;
the compound does not include veratramine.
In one aspect, the method comprises, among other things,
is->X is-CO->(b-terminal represents a bond to the left carbon in formula I as shown above) R 1 Is C 1 ～C 4 Alkyl or-CO-R 3 ；
R 2 Is hydroxy, -O-R 4 or-NH-COR 5 ；
R 4 Is hydrogen or C 1 ～C 4 An alkyl group;
R 5 is-O-R 7 ；
Y is(end a represents a connection with tertiary carbon)
R 9 Is hydroxy, R 10 Is hydrogen; or R is 9 Is halogen, R 10 Is halogen;
r is hydrogen, C 1 ～C 4 Alkyl or C 2- C 4 Alkenyl groups;
R 3 and R is 7 Independently C 1 ～C 4 An alkyl group;
the compound does not include veratramine.
In one aspect, the method comprises, among other things,
is->X is-CO-or->R 2 Is hydroxy or-O-R 4 ；
R 4 Is hydrogen or C 1 ～C 4 An alkyl group;
y is(end a represents a connection with tertiary carbon)
R 9 Is hydroxy, R 10 Is hydrogen; or R is 9 Is halogen, R 10 Is halogen;
r is hydrogen or C 1 ～C 4 An alkyl group.
In one embodiment, wherein
X is(b-terminal represents the connection to the left carbon in formula I as shown above)
R 1 Is hydrogen or-CO-R 3 ；
Y is-CO-,(end a represents a connection with tertiary carbon)
R 9 Is hydroxy or-O-CO-R 12 ，R 10 Is hydrogen; or R is described as 9 Halogen (e.g. fluorine, chlorine, bromine or iodine), R 10 Halogen (e.g., fluorine, chlorine, bromine, or iodine);
R 11 is hydroxy or-O-R 14 ；
R is hydrogen, C 1- C 4 Alkyl, C 2- C 4 Alkenyl or-CO-R 13 ；
R 3 、R 12 、R 13 And R is 14 Independently C 1 ～C 4 An alkyl group;
the compound does not include veratramine.
In one embodiment, wherein
X is
R 2 Is hydroxy, amino, -O-R 4 、NH-COR 5 or-NH-CS-NH 2 ；
R 4 Is hydrogen or C 1 ～C 4 An alkyl group;
R 5 is amino or-O-R 7 ；
Y is-CO-,(end a represents a connection with tertiary carbon)
R 9 Is hydroxy or-O-CO-R 12 ，R 10 Is hydrogen; or R is described as 9 Halogen (e.g. fluorine, chlorine, bromine or iodine), R 10 Hydrogen or halogen (e.g., fluorine, chlorine, bromine or iodine);
R 11 is hydroxy OR OR 14 ；
R is hydrogen, C 1 ～C 4 Alkyl, C 2- C 4 Alkenyl or-CO-R 13 ；
R 14 Is hydrogen or C 1 ～C 4 An alkyl group;
R 13 、R 12 and R is 7 Independently C 1 ～C 4 An alkyl group.
In one aspect, the method comprises, among other things,
x is-CO-;
y is(end a represents a connection with tertiary carbon)
R 9 Is hydroxy, R 10 Is hydrogen; or R is 9 Is fluorine, R 10 Is fluorine;
r is C 2- C 4 Alkenyl or-CO-R 13 ；
R 13 Is C 1 ～C 4 An alkyl group.
In one embodiment, when X isIn the process, X is any one of the following structures:(b-terminal represents the connection to the left carbon in formula I as shown above)
In one embodiment, when X isIn the process, X is any one of the following structures:
in one embodiment, when Y isR 9 Is halogen, R 10 In the case of hydrogen or halogen, said +.>Is that(end a represents a connection with tertiary carbon)
In one embodiment, when Y isR 9 Is hydroxy or-O-CO-R 12 ，R 10 In the case of hydrogen, said +.>Is any one of the following structures: / >(end a represents a connection with tertiary carbon)
In one embodiment, when R 9 Or R is 10 In the case of halogen, the halogen is fluorine, chlorine, bromine or iodine, for example fluorine.
In one embodiment, when R is-CO-R 13 When in use, the-CO-R 13 Is that
In one embodiment, when R 1 、R 2 、R 3 、R 4 、R 5 、R 6 、R 7 、R 12 、R 13 、R 14 Or R is C 1 ～C 6 Alkyl; the C is 1 ～C 6 Alkyl is C 1 ～C 4 Alkyl (e.g., methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, or tert-butyl).
In one embodiment, when R is C 2 ～C 6 In the case of alkenyl, said C 2 ～C 6 Alkenyl group is C 2 ～C 4 Alkenyl (e.g )
In one embodiment, certain groups in the veratrame compounds shown in formula I are defined as follows (the groups not mentioned are as described in any embodiment of the application),
is->
In one embodiment, certain groups in the veratrame compounds shown in formula I are defined as follows (the groups not mentioned are as described in any embodiment of the application),
is->
In the application, veratramine compounds shown in the general formula I are any one of the following compounds:
in general, the compounds of the application may be prepared by the methods described herein, wherein the substituents are as defined in formula I, unless otherwise indicated.
In the present application, the veratrame compounds of formula I or pharmaceutically acceptable salts thereof may be synthesized by methods including methods similar to those known in the chemical arts, and the procedures and conditions may be referred to in the art for similar reactions, particularly in accordance with the description herein. The starting materials are typically from commercial sources, such as Aldrich or can be readily prepared using methods well known to those skilled in the art (available via SciFinder, reaxys on-line databases).
The preparation method of the veratramine compound shown in the formula I comprises the following scheme I, scheme II, scheme III, scheme IV, scheme V, scheme VI, scheme seven, scheme eight and scheme nine:
in the scheme I, in the veratramine compound shown in the formula I, X isR 1 Is C 1 ～C 6 alkyl-C (=o) -when it comprises the steps of: reacting a compound shown as a formula I-a with an acylating reagent to obtain the veratramine compound shown as the formula I; wherein (1)>Y or R are as defined above;
scheme II, when X in the veratramine compound shown in the formula I is-CO-; the method comprises the following steps: subjecting a compound represented by the formula I-h to an oxidation reaction as shown below to obtainThe veratrame compound shown in the formula I is obtained; wherein,is->Y or R are as defined above;
scheme III, in the veratrame compound shown in the formula I, X isWhen in use; the method comprises the following steps: combining a compound of formula I-b with a compound of formula R 2 NH 2 The compounds shown in the formula I undergo imidization reaction as shown in the following to obtain veratramine compounds shown in the formula I; wherein Y is- > R 2 、R 9 、R 10 、R 11 Y or R are as defined above;
in the fourth scheme, when the veratram compound shown in the formula I,is->When in use; the method comprises the following steps: the compound shown in the formula I-c is subjected to the following ringOxidizing to obtain the veratramine compound shown in the formula I; wherein X is->(b-terminal represents a connection to the left carbon in formula I as shown above); y is->(a-terminal represents a bond to tertiary carbon); r is R 1 、R 9 Or R is 10 Is as defined above;
scheme five, when Y is-CO-in the veratramine compound shown in formula I, it includes the following steps: carrying out oxidation reaction on the compound shown in the formula I-d to obtain the veratramine compound shown in the formula I; wherein,is->X is->R、R 1 Or R is 2 All as defined above;
scheme six, in the veratrame compound shown in the formula I, Y isWhen in use; the method comprises the following steps: combining a compound of formula I-e with a compound of formula R 11 -NH 2 The compounds shown were subjected to the following iminesCarrying out a chemical reaction to obtain the veratramine compound shown in the formula I; wherein (1)>Is->X is-CO-,R 1 Is C 1 ～C 6 alkyl-C (=o) -, R, R 11 Or R is 2 All as defined above;
Scheme seven, when the veratrame compound shown in the formula I is shown in the specification, Y isWhen in use; (a-terminal represents a bond to tertiary carbon); r is R 9 Is halogen, R 10 When halogen; the method comprises the following steps: carrying out halogen (e.g. fluorine) chemical reaction on the compound shown in the formula I-e and a compound shown in a halogenating reagent (e.g. fluorine) to obtain the veratramine compound shown in the formula I; wherein (1)>Is->X is-CO->R 1 Is C 1 ～C 6 alkyl-C (=o) -, R or R 2 All as defined above;
scheme eight, it includes the following step: carrying out C-N coupling reaction on the compound shown in the formula I-f and a coupling reagent containing an R fragment to obtain the veratramine compound shown in the formula I; carrying out the chemical reaction shown below to obtain the veratramine compound shown in the formula I; wherein,y or R are as defined above; />
Scheme nine, when X is-CO-in the veratramine compound shown in the formula I; the method comprises the following steps: carrying out migration-oxidation reaction on a compound shown in the formula I-g in the presence of toluene, aluminum isopropoxide and cyclohexanone to obtain veratramine compound shown in the formula I; wherein, Is->Y or R are as defined above;
in the first, second, third, fourth, fifth, sixth, seventh, eighth and ninth schemes, the conditions and operations of the reaction may be those conventional in the art.
In the invention, the veratramine compound shown in the formula I or the pharmaceutically acceptable salt thereof can also be prepared by adopting a conventional method in the field to obtain other veratramine compounds shown in the formula I or the pharmaceutically acceptable salt thereof through peripheral modification.
The necessary starting materials or reagents for preparing veratrame compounds of formula I or pharmaceutically acceptable salts thereof are commercially available or may be prepared by synthetic methods known in the art. The compounds of the invention may be prepared as free bases or as salts thereof with acids, as described in the experimental section below. The term pharmaceutically acceptable salt refers to a pharmaceutically acceptable salt as defined herein and has all the effects of the parent compound. Pharmaceutically acceptable salts can be prepared by adding the corresponding acid to a suitable organic solvent for the organic base, and processing according to conventional methods.
Examples of salification include: for base addition salts, it is possible to prepare salts of alkali metals (such as sodium, potassium or lithium) or alkaline earth metals (such as aluminum, magnesium, calcium, zinc or bismuth) by treating a compound of the invention having a suitably acidic proton with an alkali metal or alkaline earth metal hydroxide or alkoxide (such as ethoxide or methoxide) or a suitably basic organic amine (such as diethanolamine, choline or meglumine) in an aqueous medium.
Alternatively, for acid addition salts, salts with inorganic acids, such as hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, phosphoric acid; and salts formed with organic acids, such as acetic acid, benzenesulfonic acid, benzoic acid, camphorsulfonic acid, citric acid, ethanesulfonic acid, fumaric acid, glucoheptonic acid, glutamic acid, glycolic acid, hydroxynaphthoic acid, 2-hydroxyethanesulfonic acid, lactic acid, maleic acid, malic acid, oxalic acid, pyruvic acid, malonic acid, mandelic acid, methanesulfonic acid, muconic acid, 2-naphthalenesulfonic acid, propionic acid, salicylic acid, succinic acid, platinic acid, tartaric acid, citric acid, cinnamic acid, p-toluenesulfonic acid or trimethylacetic acid.
The invention provides a pharmaceutical composition, which comprises veratramine compounds shown in the formula I or pharmaceutically acceptable salts thereof and one or more pharmaceutically acceptable carriers. In the pharmaceutical composition, the veratramine compound shown in the formula I or the pharmaceutically acceptable salt thereof can be used in an effective amount for treatment.
The pharmaceutically acceptable carriers (pharmaceutical excipients) can be those excipients widely used in the field of pharmaceutical production. Adjuvants are used primarily to provide a safe, stable and functional pharmaceutical composition, and may also provide means for allowing the subject to dissolve at a desired rate after administration, or for promoting effective absorption of the active ingredient after administration of the composition. The pharmaceutical excipients may be inert fillers or provide a function such as stabilizing the overall pH of the composition or preventing degradation of the active ingredients of the composition. The pharmaceutical excipients can comprise one or more of the following excipients: binders, suspending agents, emulsifiers, diluents, fillers, granulating agents, sizing agents, disintegrants, lubricants, anti-adherents, glidants, wetting agents, gelling agents, absorption retarders, dissolution inhibitors, enhancing agents, adsorbents, buffering agents, chelating agents, preservatives, colorants, flavoring agents, and sweeteners.
The pharmaceutical compositions of the present invention may be prepared in accordance with the disclosure using any method known to those of skill in the art. For example, conventional mixing, dissolving, granulating, emulsifying, levigating, encapsulating, entrapping or lyophilizing processes.
The pharmaceutical compositions of the present invention may be administered in any form, including injection (intravenous), mucosal, oral (solid and liquid formulations), inhalation, ocular, rectal, topical or parenteral (infusion, injection, implantation, subcutaneous, intravenous, intra-arterial, intramuscular). The pharmaceutical compositions of the invention may also be in controlled or delayed release dosage forms (e.g., liposomes or microspheres). Examples of solid oral formulations include, but are not limited to, powders, capsules, caplets, soft capsules, and tablets. Examples of liquid formulations for oral or mucosal administration include, but are not limited to, suspensions, emulsions, elixirs and solutions. Examples of topical formulations include, but are not limited to, emulsions, gels, ointments, creams, patches, pastes, foams, lotions, drops or serum formulations. Examples of formulations for parenteral administration include, but are not limited to, solutions for injection, dry formulations which may be dissolved or suspended in a pharmaceutically acceptable carrier, suspensions for injection, and emulsions for injection. Examples of other suitable formulations of the pharmaceutical composition include, but are not limited to, eye drops and other ophthalmic formulations; aerosol: such as nasal sprays or inhalants; a liquid dosage form suitable for parenteral administration; suppositories and lozenges.
The invention also provides application of the veratramine compound shown in the formula I or pharmaceutically acceptable salt thereof or the pharmaceutical composition in preparation of the AP-1 inhibitor.
In such applications, the AP-1 inhibitor may be used in mammalian organisms; it is also useful in vitro, mainly as an experimental use, for example: the kit can be used as a standard sample or a control sample for comparison or prepared according to a conventional method in the field to provide rapid detection for the inhibition effect of the AP-1.
The invention also provides application of the veratramine compound shown in the formula I or pharmaceutically acceptable salt thereof or the pharmaceutical composition in preparation of medicines. The medicament can be used for preventing and/or treating cell proliferative diseases; and/or the medicament can be a medicament for preventing and/or treating a disease or disorder associated with AP-1.
The above-described AP-1-related disease or disorder may be a cell proliferative disease. The medicament can prevent and/or treat cell proliferation diseases by regulating the expression and/or activity of AP-1.
The present invention also provides a method for preventing and/or treating a cell proliferative disorder (e.g., AP-1-related) comprising administering to a subject, such as a human, in need thereof a therapeutically effective amount of the veratrame compound of formula I or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition as described above.
Also provided herein is a method of inhibiting cell proliferation in vitro or in vivo, comprising contacting a cell with an effective amount of a veratrame compound as defined herein, or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition as described above.
Cell proliferative disorders as described above, including cancer; the cancer may be skin cancer, ovarian cancer, colon cancer, breast cancer, liver cancer, pancreatic cancer, gall bladder cancer, gastrointestinal cancer, head and neck cancer, cervical cancer, prostate cancer, lung cancer, melanoma, germ cell tumor, gestational trophoblastoma, glioblastoma, myeloma, neuroblastoma, monocytic leukemia, B-cell leukemia, T-cell leukemia, B-cell lymphoma, T-cell lymphoma, and mast cell tumor, and combinations thereof.
When used as a medicament, the veratrame compound shown in the formula I or the pharmaceutically acceptable salt thereof can be administered in the form of a pharmaceutical composition. These compositions may be prepared according to methods well known in the pharmaceutical arts and may be administered by various routes, depending upon the local or systemic treatment and the area to be treated. Administration may be in the form of topical (including epidermal and transdermal, ocular and mucosal, including intranasal, vaginal and rectal delivery), pulmonary (e.g., by powder or aerosol inhalation or insufflation, including by nebulizer; intratracheal or intranasal), oral or parenteral administration. Oral administration may include dosage forms formulated for once-a-day or twice-a-day (BID) administration. Parenteral administration includes intravenous, intra-arterial, subcutaneous, intraperitoneal intramuscular or injection or infusion; or intracranial, such as intrathecal or intraventricular administration. Parenteral administration may be in the form of a single bolus dose or may be by a continuous infusion pump. Pharmaceutical compositions and formulations for topical administration may include transdermal patches, ointments, emulsions, ointments, gels, drops, suppositories, sprays, liquids and powders. Conventional pharmaceutical carriers, water, powder or oily bases, thickeners and the like may be necessary or desirable.
As used herein, the term "treatment" refers to therapeutic or palliative measures. Beneficial or desired clinical results include, but are not limited to: all or part of a symptom associated with a disease or disorder or condition, reducing the extent of a disease, stabilizing (i.e., not worsening) the disease state, delaying or slowing the progression of a disease, alleviating or alleviating the disease state (e.g., one or more symptoms of a disease), and detectable or undetectable alleviation (whether partial or complete). "treatment" may also refer to an extended survival period compared to the expected survival without treatment.
In certain embodiments, the veratrame compounds as shown in formula I, or pharmaceutically acceptable salts thereof, or pharmaceutical compositions as described above, are useful for preventing diseases and disorders (e.g., cancer) as defined herein. The term "preventing" as used herein means preventing the onset, recurrence or spread of a disease or disorder or symptoms thereof described herein, in whole or in part.
The term "pharmaceutical excipients" or "excipients" refers to pharmaceutically acceptable chemicals, such as agents known to those of ordinary skill in the pharmaceutical arts for aiding in the administration of a pharmaceutical. It is a compound that can be used to prepare pharmaceutical compositions, is generally safe, non-toxic, and biologically or otherwise undesirable, and includes excipients that are acceptable for veterinary and human use. Typical excipients include binders, surfactants, diluents, disintegrants and lubricants.
The following definitions as used herein should be applied unless otherwise indicated. For the purposes of the present invention, chemical elements are in accordance with CAS version of the periodic Table of the elements, and handbook of chemistry and physics, 75 th edition, 1994. In addition, general principles of organic chemistry may be referenced to the descriptions in "Organic Chemistry", thomas Sorrell, university Science Books, sausalato:1999, and "March's Advanced Organic Chemistry" by Michael b.smith and Jerry March, john Wiley & Sons, new york:2007, the entire contents of which are incorporated herein by reference.
In this specification, groups and substituents thereof can be selected by one skilled in the art to provide stable moieties and compounds. When substituents are described by conventional formulas written from left to right, the substituents also include chemically equivalent substituents obtained when writing formulas from right to left.
Certain chemical groups defined herein are preceded by a simplified symbol to indicate the total number of carbon atoms present in the group. For example, C 1 -C 6 Alkyl refers to an alkyl group as defined below having a total of 1, 2, 3, 4, 5 or 6 carbon atoms. Simplifying carbon atoms in symbolsThe total number does not include carbon that may be present in substituents of the group.
In this context, a numerical range as defined in substituents, such as 0 to 4, 1-4, 1 to 3, etc., indicates an integer within the range, such as 1-6 is 1, 2, 3, 4, 5, 6.
In addition to the foregoing, when used in the specification and claims of the present application, the following terms have the meanings indicated below, unless otherwise specified.
The term "one(s)" or "one(s) or two or more" means 1, 2, 3, 4, 5, 6, 7, 8, 9 or more.
The term "comprising" is an open-ended expression, i.e. including what is indicated by the application, but not excluding other aspects.
The term "substituted" refers to any one or more hydrogen atoms on a particular atom being substituted with a substituent, including heavy hydrogen and variants of hydrogen, so long as the valence of the particular atom is normal and the substituted compound is stable.
In general, the term "substituted" means that one or more hydrogen atoms in a given structure are replaced with a specific substituent. Further, when the group is substituted with 1 or more of the substituents, the substituents are independent of each other, that is, the 1 or more substituents may be different from each other or the same. Unless otherwise indicated, a substituent group may be substituted at each substitutable position of the substituted group. When more than one position in a given formula can be substituted with one or more substituents selected from a particular group, then the substituents may be the same or different at each position.
In the various parts of the present specification, substituents of the presently disclosed compounds are disclosed in terms of the type or scope of groups. It is specifically noted that the present invention includes each individual subcombination of the individual members of these group classes and ranges. The term "C x -C y Alkyl "refers to a straight or branched chain saturated hydrocarbon containing from x to y carbon atoms. For example, the term "C 1 ～C 6 Alkyl "or" C 1-6 Alkyl radicals "In particular to methyl, ethyl and C independently disclosed 3 Alkyl, C 4 Alkyl, C 5 Alkyl and C 6 An alkyl group; "C 1-4 Alkyl "refers specifically to independently disclosed methyl, ethyl, C 3 Alkyl (i.e. propyl, including n-propyl and isopropyl), C 4 Alkyl (i.e., butyl, including n-butyl, isobutyl, sec-butyl, and tert-butyl).
The term "alkenyl" refers to a compound having at least one unsaturated site, i.e., carbon-carbon sp 2 Straight-chain or branched monovalent hydrocarbon radicals of two to twelve carbon atoms of the double bond (e.g. C 2 -C 6 Alkenyl radicals, also e.g. C 2 -C 4 Alkenyl) and includes groups having "cis" and "trans" orientations or "E" and "Z" orientations. Examples include, but are not limited to, vinyl, allyl, 1-cyclopent-1-enyl, 1-cyclopent-2-enyl, 1-cyclopent-3-enyl, 5-hexenyl, 1-cyclohex-1-enyl, 1-cyclohex-2-enyl, and 1-cyclohex-3-enyl.
The term "halogen" is selected from F, cl, br or I, especially F or Cl.
In the present application, as part of a group or other groups (e.g., as used in halogen-substituted alkyl groups and the like), the term "alkyl" is meant to include both branched and straight-chain saturated aliphatic hydrocarbon groups having the indicated number of carbon atoms; such as straight or branched saturated hydrocarbon chains containing 1 to 6 carbon atoms; for example, C 1 -C 6 Is a hydrocarbon group. As in "C 1 ～C 6 Alkyl "is defined to include groups having 1,2, 3, 4, 5, or 6 carbon atoms in a straight or branched chain structure. Wherein propyl is C 3 Alkyl (including isomers such as n-propyl or isopropyl); butyl is C 4 Alkyl (including isomers such as n-butyl, sec-butyl, isobutyl, or tert-butyl); pentyl is C 5 Alkyl (including isomers such as n-pentyl, 1-methyl-butyl, 1-ethyl-propyl, 2-methyl-1-butyl, 3-methyl-1-butyl, isopentyl, t-pentyl or neopentyl); hexyl is C 6 Alkyl (including isomers such as n-hexyl, 1-ethyl-2-methylpropyl, 1, 2-trimethylpropyl, 1-dimethylbutyl, 1, 2-di-Methylbutyl, 2-dimethylbutyl, 1, 3-dimethylbutyl, 2-ethylbutyl, 2-methylpentyl, 3-methylpentyl, 4-methylpentyl, 2, 3-dimethylbutyl). In one embodiment, the term "alkyl" refers to a C1-C4 alkyl group.
The terms "moiety", "structural moiety", "chemical moiety", "group", "chemical group" as used herein refer to a particular fragment or functional group in a molecule. Chemical moieties are generally considered to be chemical entities that are embedded or attached to a molecule.
When none of the listed substituents indicates through which atom it is attached to a compound included in the chemical structural formula but not specifically mentioned, such substituents may be bonded through any of their atoms. Combinations of substituents and/or variants thereof are permissible only if such combinations result in stable compounds.
Where no substituent is explicitly indicated in a recited group, such a group is merely unsubstituted. For example when "C 1 ～C 4 Alkyl "not previously" substituted or unsubstituted "refers only to" C 1 ～C 4 Alkyl "as such or" unsubstituted C 1 ～C 4 An alkyl group.
In the various parts of the invention, linking substituents are described. When the structure clearly requires a linking group, the markush variables recited for that group are understood to be linking groups. For example, if the structure requires a linking group and the markush group definition for that variable enumerates an "alkyl" group, it will be understood that the "alkyl" represents a linked alkylene group.
In some specific structures, when an alkyl group is explicitly represented as a linking group, then the alkyl group represents a linked alkylene group, e.g., the group "halo-C 1 ～C 6 C in alkyl' 1 -C 6 Alkyl is understood to mean C 1 ～C 6 An alkylene group.
The term "alkylene" means a saturated divalent hydrocarbon group resulting from the removal of two hydrogen atoms from a saturated straight or branched hydrocarbon group.Examples of alkylene groups include methylene (-CH) 2 (-), ethylene { including-CH 2 CH 2 -or-CH (CH) 3 ) - } isopropylidene { including-CH (CH) 3 )CH 2 -or-C (CH) 3 ) 2 - }, and the like.
Unless otherwise specified, all technical and scientific terms used herein have the standard meaning of the art to which the claimed subject matter belongs. In case there are multiple definitions for a term, the definitions herein control.
As used herein, the singular forms "a", "an", and "the" are understood to include plural referents unless the context clearly dictates otherwise. Furthermore, the term "comprising" is an open-ended limitation and does not exclude other aspects, i.e. it includes the content indicated by the invention.
Unless otherwise indicated, the present invention employs conventional methods of mass spectrometry, elemental analysis, and the various steps and conditions are referred to in the art by conventional procedures and conditions.
The present application employs, unless otherwise indicated, standard nomenclature for analytical chemistry, organic synthetic chemistry and optics, and standard laboratory procedures and techniques. In some cases, standard techniques are used for chemical synthesis, chemical analysis, and light emitting device performance detection.
In addition, unless explicitly indicated otherwise, the description of the application as "…" independently is to be understood broadly as meaning that each individual described may be independent of the other, and may be the same or different. In more detail, the description "… is independently" may mean that specific options expressed between the same symbols in different groups do not affect each other; it may also be expressed that specific options expressed between the same symbols in the same group do not affect each other.
Those skilled in the art will appreciate that, in accordance with the convention used in the art, the present application describes the structural formula of the group usedRefers to the corresponding radicalThe group is linked to other fragments and groups in the compound through this site.
The above preferred conditions can be arbitrarily combined on the basis of not deviating from the common knowledge in the art, and thus, each preferred embodiment of the present application can be obtained.
The reagents and materials used in the present invention are commercially available.
The invention has the positive progress effects that: can be used as a series of novel AP-1 inhibitors and can be used for preparing medicaments for corresponding diseases. Preliminary activity researches show that the compound provided by the invention has strong activity of inhibiting proliferation of tumor cells; has the potential of preparing novel antitumor drugs and has better market prospect.
Detailed Description
The invention is further illustrated by means of the following examples, which are not intended to limit the scope of the invention. The experimental methods, in which specific conditions are not noted in the following examples, were selected according to conventional methods and conditions, or according to the commercial specifications.
Example 1
Weighed veratramine (3 g,7.33 mmol) was dissolved in 50ml of water, HCHO (893. Mu.l, 8.80 mmol) and HCOOH (1372. Mu.l, 36.67 mmol) were added, the reaction was refluxed for 12h at 100℃under argon protection, after TLC monitoring the reaction was completed, quenched with saturated NaOH solution, extracted with DCM (20 ml. Times.3), anhydrous Na 2 SO 4 Drying, filtering, concentrating to obtain crude product, and purifying with silica gel column chromatography (PE/EA=3:1-1:1) to obtain intermediate
Intermediate products 1 H NMR(500MHz,CDCl3)δ7.25(d,J＝6.3Hz,1H),7.02(d,J＝7.7Hz,1H),5.48(brd,J＝5.1Hz,1H),3.87–3.82(m,1H),3.73–3.67(m,1H),3.61–3.53(m,1H),2.97–2.91(m,1H),2.77(dd,J＝15.0,7.5Hz,2H),2.66–2.53(m,2H),2.47(s,3H),2.41(dd,J＝12.9,4.3Hz,1H),2.33(s,3H),2.29–2.24(m,1H),2.16(d,J＝7.0Hz,1H),2.04–1.97(m,1H),1.91–1.70(m,8H),1.65–1.58(m,1H),1.42(d,J＝7.2Hz,3H),1.34–1.22(m,2H),1.13(s,3H),0.85(d,J＝6.5Hz,3H)； 13 C NMR(125MHz,CDCl 3 )δ145.12,144.30,142.59,140.96,132.70,123.75,122.03,120.84,71.91,70.78,67.50,64.84,57.09,42.82,41.99,41.89,41.30,38.13,37.02,34.34,31.41,30.49,30.45,28.65,19.34,19.27,16.15,12.86.HRMS(ESI):m/z calcd for C 28 H 42 NO 2 + [M+H] + :424.3210,found 424.3214。
The intermediate (210 mg,0.50 mmol) was dissolved in anhydrous DCM and Py (400 μl,4.96 mmol) was added dropwise with CH in ice-bath 3 COCl (351. Mu.l, 4.96 mmol), after the completion of the dropwise addition, at 0deg.C for 20min, after TLC monitoring the reaction, saturated NaHCO was added 3 The solution was quenched, extracted with DCM (5 ml. Times.3), anhydrous Na 2 SO 4 Dried, filtered and concentrated to give crude product, which was purified by silica gel column chromatography (PE/ea=3:1) to give VT-8 as a white solid (142 mg, 61%).
1 H NMR(500MHz,CDCl 3 )δ7.26(d,J＝7.5Hz,1H),7.01(d,J＝7.7Hz,1H),5.51(brd,J＝5.0Hz,1H),4.69–4.61(m,1H),3.85–3.81(m,1H),3.73–3.66(m,1H),2.94(td,J＝11.6,5.3Hz,1H),2.80–2.73(m,2H),2.65–2.53(m,2H),2.46(s,3H),2.43(dd,J＝4.9,1.7Hz,1H),2.39–2.34(m,1H),2.33(s,3H),2.15(dd,J＝8.5,3.6Hz,1H),2.05(s,3H),1.94–1.78(m,6H),1.74–1.64(m,2H),1.41(d,J＝7.2Hz,3H),1.37–1.26(m,2H),1.14(s,3H),0.85(d,J＝6.5Hz,3H)； 13 C NMR(125MHz,CDCl 3 )δ170.65,144.97,144.18,141.44,141.00,132.69,123.75,122.99,120.81,73.98,70.74,67.48,64.84,56.97,42.81,41.90,41.20,37.85,37.84,37.08,34.32,30.43,30.41,28.67,27.56,21.54,19.27,19.22,16.13,12.80.HRMS(ESI):m/z calcd for C 30 H 44 NO 3 + [M+H] + :466.3316,found(466.3315)。
Example 2
Under the protection of argon, cooling an anhydrous DCM solution of oxalyl chloride (184 μl,2.15 mmol) to-78deg.C, adding an anhydrous DCM solution of DMSO (229 μl,3.23 mmol), reacting for 1h, adding an anhydrous DCM solution of VT-8 (500 mg,1.08 mmol), reacting for 1.5h, adding triethylamine (894 μl,6.45 mmol), protecting at-65deg.C for 1h, removing the low temperature, slowly rising to room temperature under stirring, then quenching with water, and adding saturated NH 4 Washing with Cl and saturated NaCl solution for several times, anhydrous Na 2 SO 4 Dried, filtered and concentrated to give crude product, which was purified by silica gel column chromatography (PE/ea=19:1) to give VT-9 as a white solid (283 mg, 68%).
1 H NMR(500MHz,CDCl 3 )δ7.08(d,J＝7.8Hz,1H),6.98(d,J＝7.7Hz,1H),5.52(brd,J＝5.3Hz,1H),4.70–4.61(m,1H),3.61(d,J＝9.9Hz,1H),3.41–3.35(m,1H),2.97(td,J＝11.7,5.3Hz,1H),2.89(dd,J＝13.4,2.9Hz,1H),2.82–2.70(m,2H),2.63–2.53(m,3H),2.52–2.42(m,2H),2.38–2.32(m,1H),2.28(s,3H),2.20–2.13(m,1H),2.05(s,6H),1.94–1.83(m,3H),1.74–1.64(m,1H),1.39–1.24(m,2H),1.15(s,3H),1.09(d,J＝6.7Hz,3H),0.96(d,J＝6.5Hz,3H)； 13 C NMR(125MHz,CDCl 3 )δ210.25,170.60,143.53,142.66,141.44,140.11,131.21,125.23,123.21,120.06,74.04,73.25,61.73,56.97,50.05,41.32,37.90,37.89,37.09,36.82,35.12,32.11,30.49,30.46,27.59,21.53,21.02,19.29,19.29,15.50.HRMS(ESI):m/z calcd for C 30 H 42 NO 3 + [M+H] + :464.3159,found(464.3162)。
Example 3
VT-9 (387 mg,0.84 mmol) was dissolved in anhydrous EtOH, hydroxylamine hydrochloride (581 mg,8.4 mmol) and anhydrous sodium acetate (686 mg,8.4 mmol) were added and reacted at room temperature for 4h. After TLC monitoring the reaction was completed, quenched with water and extracted with DCM. Anhydrous Na for organic phase 2 SO 4 Dried, filtered and concentrated to give crude product, which is chromatographed on silica gel (PE/ea=5:1)-3:1) to give VT-10 (294 mg, 74%) as a white solid.
1 H NMR(500MHz,CDCl 3 )δ7.08(d,J＝7.8Hz,1H),6.98(d,J＝7.8Hz,1H),5.52(d,J＝5.2Hz,1H),4.71–4.62(m,1H),3.49–3.42(m,2H),2.97(td,J＝11.6,5.3Hz,1H),2.93–2.82(m,2H),2.79(dd,J＝14.7,7.3Hz,1H),2.66–2.52(m,2H),2.45(ddd,J＝12.9,4.8,1.6Hz,1H),2.40–2.32(m,2H),2.30(s,3H),2.08(s,3H),2.06(s,3H),1.96–1.79(m,3H),1.76–1.63(m,1H),1.39–1.25(m,3H),1.16(s,3H),1.10(d,J＝6.6Hz,3H),0.97(d,J＝6.3Hz,3H),0.91–0.83(m,1H)； 13 C NMR(125MHz,CDCl 3 )δ170.62,143.37,142.50,141.28,141.28,131.32,124.67,123.12,120.01,73.98,69.08,59.99,59.98,56.88,53.44,41.16,37.77,36.97,34.87,30.57,30.43,30.36,29.24,28.99,27.48,21.44,20.82,19.62,19.20,15.70.HRMS(ESI):m/z calcd for C 30 H 43 N 2 O 3 + [M+H] + :479.3268,found(479.3270)。
Example 4
VT-9 is used as raw material, and the synthesis method is the same as VT-10
White solid, yield about 85%. 1 H NMR(500MHz,CDCl 3 )δ7.10(d,J＝7.8Hz,1H),6.98(d,J＝7.7Hz,1H),5.52(brd,J＝5.2Hz,1H),4.71–4.62(m,1H),4.18–4.12(m,2H),3.41(s,2H),2.97(td,J＝11.6,5.3Hz,1H),2.86(d,J＝11.6Hz,1H),2.79(dd,J＝14.7,7.3Hz,1H),2.73(dd,J＝13.9,3.6Hz,1H),2.65–2.53(m,2H),2.48–2.42(m,1H),2.36(dd,J＝19.5,8.0Hz,2H),2.30(s,3H),2.28–2.22(m,1H),2.15–2.07(m,3H),2.05(s,4H),1.95–1.81(m,4H),1.75–1.65(m,1H),1.39–1.32(m,1H),1.29(t,J＝7.0Hz,4H),1.15(s,3H),1.09(d,J＝6.2Hz,3H),0.95(d,J＝6.2Hz,3H)； 13 C NMR(125MHz,CDCl 3 )δ170.64,143.28,143.25,142.48,141.86,141.41,131.51,124.79,123.28,119.98,74.07,69.30,69.01,60.10,56.99,41.29,41.26,37.91,37.10,35.28,31.29,30.56,30.50,29.18,27.62,21.56,20.99,19.82,19.33,15.91,15.02,14.78.HRMS(ESI):m/z calcd for C 32 H 47 N 2 O 3 + [M+H] + :507.3581,found(507.3580)。
Example 5
VT-9 (216 mg,0.47 mmol) was dissolved in anhydrous DCM (2.5 ml) under Ar protection, DAST (1.7 ml,14.00 mmol) was added dropwise under ice-bath, after half an hour of addition was completed, the ice-bath was removed, and the reaction was carried out at room temperature for 24h. After TLC monitoring that most of raw materials are reacted, slowly pouring the reaction solution into ice water for quenching, and after complete quenching, using anhydrous Na to make the organic phase 2 SO 4 Dried, filtered and concentrated to give crude product, which was purified by silica gel column chromatography (PE/ea=3:1) to give VT-20 as a white solid (115 mg, 51%).
1 H NMR(500MHz,CDCl 3 )δ7.12(d,J＝7.7Hz,1H),6.98(d,J＝7.8Hz,1H),5.52(brd,J＝5.2Hz,1H),4.71–4.62(m,1H),3.53–3.44(m,1H),3.02–2.75(m,4H),2.65–2.53(m,2H),2.48–2.42(m,1H),2.39–2.32(m,1H),2.29(s,3H),2.24(s,3H),2.22–2.12(m,3H),2.05(s,3H),1.95–1.81(m,3H),1.75–1.65(m,1H),1.48–1.31(m,5H),1.15(s,3H),0.87(d,J＝6.2Hz,3H)； 13 C NMR(125MHz,CDCl 3 )δ170.65,143.48,142.72,141.63,141.42,130.62,125.57/123.54/121.54,125.07,123.27,119.94,74.06,66.97/66.80/66.63,63.02,57.05,43.42/43.23/43.04,41.31,38.31,37.93,37.91,37.13,33.67,30.52,30.49,27.62,25.13/25.07,21.58,19.92/19.88,19.33,18.36,15.55.HRMS(ESI):m/z calcd for C 30 H 42 F 2 NO 2 + [M+H] + :486.3178,found(486.3177)。
Example 6
VT-20 (165 mg,0.34 mmol) was dissolved in CH 3 To OH, naOH (27 mg,0.68 mmol) was added, atReflux reaction is carried out for 2h at 65 ℃. After TLC monitoring the reaction was completed, quenched with water and extracted with DCM. Anhydrous Na for organic phase 2 SO 4 Drying, filtering, concentrating to obtain crude product, and purifying with silica gel column chromatography (PE/EA=3:1-1:1) to obtain white solid intermediate
Intermediate products 1 H NMR(500MHz,CDCl 3 )δ7.12(d,J＝7.7Hz,1H),6.99(d,J＝7.7Hz,1H),5.49(brd,J＝5.2Hz,1H),3.63–3.47(m,2H),2.98(td,J＝11.6,5.3Hz,2H),2.88(d,J＝9.5Hz,1H),2.78(dd,J＝14.7,7.4Hz,1H),2.66–2.53(m,2H),2.42(ddd,J＝12.9,4.7,1.7Hz,1H),2.29(s,3H),2.27(s,3H),2.23–2.13(m,2H),2.09–1.99(m,1H),1.92–1.79(m,4H),1.61(ddd,J＝27.2,13.8,4.0Hz,1H),1.50–1.39(m,1H),1.36(dd,J＝6.7,3.4Hz,3H),1.32–1.23(m,1H),1.14(s,3H),0.89(d,J＝6.0Hz,3H)； 13 C NMR(125MHz,CDCl 3 )δ143.72,142.90,142.54,141.36,130.59,126.15/123.33/120.82,125.01,122.26,120.07,71.96,67.09/66.89/66.75,62.96,57.14,43.25/43.07/42.87,42.02,41.37,38.48,38.17,37.04,33.69,31.44,30.58,30.47,25.05/24.99,20.00/19.96,19.42,18.31,15.56.HRMS(ESI):m/z calcd for C 28 H 40 F 2 NO + [M+H] + :444.3072,found(444.3075)
The intermediate is used as raw material, the synthesis method is the same as VT-9, and VT-22 is obtained by synthesis
White solid, yield about 70%. 1 H NMR(500MHz,CDCl 3 )δ7.13(d,J＝7.4Hz,1H),6.99(d,J＝7.4Hz,1H),5.82(brd,J＝1.1Hz,1H),3.51–3.45(m,1H),3.12–2.72(m,4H),2.64–2.37(m,7H),2.28(s,3H),2.24(s,3H),2.21–2.00(m,4H),1.90(td,J＝14.2,4.5Hz,1H),1.82–1.76(m,1H),1.52–1.40(m,2H),1.34(dd,J＝6.8,3.2Hz,3H),1.29(s,3H),0.88(d,J＝6.3Hz,3H). 13 C NMR(125MHz,CDCl 3 )δ199.50,170.20,142.57,142.51,141.98,130.84,125.30,125.27,119.56,66.94/66.77/66.60,63.00,59.70,43.91,38.68,38.32,36.34,33.95,33.66,33.36,30.20,29.72,25.10/25.04,19.88/19.83,18.34,17.00,15.52.HRMS(ESI):m/z calcd for C 28 H 38 F 2 NO + [M+H] + :442.2916,found 442.2918。
Example 7
VT-22 is taken as raw material, and the synthesis method is the same as VT-10
White solid, yield about 83%. 1 H NMR(500MHz,CDCl 3 )δ7.12(d,J＝7.8Hz,1H),6.98(d,J＝7.8Hz,1H),5.60–5.51(m,1H),3.51–3.44(m,1H),3.06–2.78(m,5H),2.66–2.56(m,2H),2.46–2.31(m,2H),2.29(s,3H),2.24(s,3H),2.23–2.02(m,5H),1.98–1.85(m,2H),1.54–1.39(m,2H),1.35(dd,J＝6.9,3.2Hz,4H),1.26(s,1H),1.23(s,3H).HRMS(ESI):m/z calcd for C 28 H 39 F 2 N 2 O + [M+H] + :457.3025,found457.3031。
Example 8
Veratramine (500 mg,1.22 mmol) was dissolved in THF and Et was added 3 N (1236 mg,12.22 mmol) was then added FmocCl (3161 mg,12.22 mmol) in THF, reacted at room temperature for 1h, quenched with water, the organic phase separated, concentrated and purified by silica gel column chromatography (PE/EA=5:1) to give a white intermediate. The next acetylation step is identical to VT-8. The intermediate was then dissolved in DMF, 2ml piperidine was added, stirred at room temperature for 30min, after TLC monitoring the reaction was complete, 5ml water was added three times water wash and extracted with DCM, the organic phase was taken up in anhydrous Na 2 SO 4 Dried, filtered and concentrated to give crude product, which was purified by silica gel column chromatography (PE/ea=3:1) to give a white solid (45 mg, 35%).
1 H NMR(500MHz,CDCl 3 )δ7.22(d,J＝7.8Hz,1H),6.97(d,J＝7.7Hz,1H),5.52(brd,J＝5.0Hz,1H),4.69–4.62(m,1H),3.53–3.46(m,1H),3.31–3.26(m,1H),3.00–2.89(m,2H),2.79(dd,J＝14.8,7.4Hz,1H),2.65–2.54(m,2H),2.51–2.42(m,2H),2.36(dd,J＝8.5,5.5Hz,1H),2.32(s,3H),2.11(dd,J＝15.1,8.0Hz,1H),2.05(s,3H),1.99(dd,J＝7.8,5.6Hz,1H),1.94–1.82(m,3H),1.74–1.64(m,2H),1.57–1.46(m,2H),1.39(d,J＝7.2Hz,3H),1.37–1.24(m,2H),1.16(s,3H),1.00(dd,J＝23.0,12.1Hz,1H),0.82(d,J＝6.6Hz,3H)； 13 C NMR(125MHz,CDCl 3 )δ170.65,143.99,143.10,141.47,140.40,132.82,125.39,123.16,120.02,74.04,70.89,67.12,56.98,54.07,44.14,41.30,37.90,37.90,37.11,36.24,32.15,30.61,30.49,27.61,21.57,19.50,19.30,18.94,15.97.HRMS(ESI):m/z calcd for C 29 H 42 NO 3 + [M+H] + :452.3159,found(452.3153)。
Example 9
Veratramine (1 g,2.44 mmol) was dissolved in acetone and K was added 2 CO 3 (3.4 g,24.45 mmol) and 3-bromopropene (1.5 g,12.2 mmol) were reacted at 56℃under reflux for 12h. After TLC monitoring the reaction was completed, aqueous ammonia was added and stirred for 1h to quench, concentrated under reduced pressure to remove most of the solvent, washed with water and extracted with DCM (5 ml. Times.3), the organic phases combined, anhydrous Na 2 SO 4 After drying, concentration under reduced pressure and purification of the crude product by silica gel column chromatography (PE/ea=3:1-1:1), the intermediate obtained
Intermediate products 1 H NMR(500MHz,CDCl 3 )δ7.25(d,J＝7.8Hz,1H),7.01(d,J＝7.7Hz,1H),5.96(m,1H),5.48(brd,J＝5.2Hz,1H),5.26–5.16(m,2H),3.81–3.86(m,1H),3.74–3.65(m,1H),3.61–3.51(m,2H),3.04(dd,J＝14.4,7.7Hz,1H),2.95(td,J＝11.6,5.3Hz,1H),2.86(d,J＝10.9Hz,1H),2.76(dd,J＝14.9,7.4Hz,1H),2.66–2.53(m,2H),2.50–2.34(m,2H),2.31(s,3H),2.29–2.22(m,1H),2.04–1.96(m,1H),1.93–1.76(m,7H),1.68–1.54(m,2H),1.40(d,J＝7.1Hz,3H),1.30–1.25(m,1H),1.13(s,3H),0.87(d,J＝6.7Hz,3H)； 13 C NMR(125MHz,CDCl 3 )δ145.01,144.07,142.61,140.98,135.74,132.68,124.04,121.96,120.77,117.41,71.84,67.50,67.42,59.75,57.09,56.23,41.96,41.30,41.27,38.12,36.99,34.21,31.37,30.47,30.43,28.24,19.52,19.32,16.17,13.91.HRMS(ESI):m/z calcd for C 30 H 44 NO 2 + [M+H] + :450.3367,found(450.3369)。
The intermediate is used as a raw material, and the synthesis method is the same as VT-8.
White solid, yield about 55%. 1 H NMR(500MHz,CDCl 3 )δ7.25(d,J＝7.0Hz,1H),7.02(d,J＝7.7Hz,1H),6.01–5.92(m,1H),5.51(brd,J＝5.2Hz,1H),5.30–5.17(m,2H),4.70–4.61(m,1H),3.85–3.80(m,1H),3.73–3.66(m,1H),3.57(dd,J＝14.4,5.0Hz,1H),3.03(dd,J＝14.4,7.7Hz,1H),2.94(td,J＝11.6,5.2Hz,1H),2.86(d,J＝11.0Hz,1H),2.77(dd,J＝14.9,7.4Hz,1H),2.65–2.53(m,2H),2.49–2.42(m,2H),2.36(d,J＝11.4Hz,1H),2.31(s,3H),2.05(s,3H),2.01(dd,J＝9.6,7.1Hz,1H),1.95–1.78(m,5H),1.75–1.58(m,2H),1.40(d,J＝7.1Hz,3H),1.36–1.26(m,2H),1.15(s,3H),0.90(d,J＝12.1Hz,1H),0.87(d,J＝6.6Hz,3H)； 13 C NMR(125MHz,CDCl 3 )δ170.48,144.78,143.87,141.33,140.91,135.66,132.59,123.92,122.87,120.66,117.27,73.84,67.35,67.26,59.66,56.85,56.11,41.21,41.08,37.73,37.73,36.95,34.07,30.32,30.29,28.17,27.44,21.42,19.42,19.10,16.06,13.73.HRMS(ESI):m/zcalcd for C 32 H 46 NO 3 + [M+H] + :492.3472,found 492.3474。
Example 10
VT-27 is used as raw material, and the synthesis method is the same as VT-9
White solid, yield about 75%. 1 H NMR(500MHz,CDCl 3 )δ7.07(d,J＝7.8Hz,1H),6.96(d,J＝7.8Hz,1H),5.52(brd,J＝5.2Hz,1H),5.35–5.24(m,1H),4.95–4.87(m,2H),4.70–4.61(m,1H),3.55(d,J＝9.6Hz,1H),3.52–3.44(m,1H),3.06–2.92(m,2H),2.83–2.74(m,3H),2.63–2.54(m,3H),2.47–2.41(m,2H),2.39–2.32(m,1H),2.28(s,3H),2.17–2.11(m,1H),2.05(s,3H),1.95–1.79(m,4H),1.74–1.67(m,1H),1.38–1.27(m,2H),1.16(s,3H),1.09(d,J＝6.7Hz,3H),0.97(d,J＝6.2Hz,3H)； 13 C NMR(125MHz,CDCl 3 )δ210.71,170.65,143.62,142.52,141.43,140.23,136.16,131.35,125.64,123.22,119.93,116.79,74.19,74.07,57.11,55.25,53.61,48.38,41.27,37.92,37.10,33.39,32.74,30.51,30.50,27.63,21.57,20.61,19.56,19.35,19.30,15.79.HRMS(ESI):m/z calcd for C 32 H 44 NO 3 + [M+H] + :490.3316,found 490.3313。
Example 11
Veratramine (500 mg,1.22 mmol) and aluminum isopropoxide (499 mg,2.44 mmol) were dissolved in toluene, cyclohexanone (1.3 ml,12.22 mmol) was added, the reaction was refluxed at 110 ℃ for 6h, after completion of the reaction by tlc spot-plating, the reaction solution was filtered, the filtrate was concentrated in vacuo and purified by silica gel column chromatography (PE/ea=2:1-1:1) to give VT-34 (418 mg, 83%) as a white solid.
1 H NMR(500MHz,CDCl 3 )δ7.24(d,J＝7.8Hz,1H),6.97(d,J＝7.7Hz,1H),5.82(s,1H),3.54–3.46(m,1H),3.26(ddd,J＝10.6,9.4,4.6Hz,1H),3.05(td,J＝12.0,3.1Hz,1H),2.91(ddd,J＝12.1,3.9,1.9Hz,1H),2.75(dd,J＝14.6,6.9Hz,1H),2.64–2.36(m,7H),2.32(s,3H),2.14–1.97(m,3H),1.89(td,J＝14.2,4.5Hz,1H),1.82–1.63(m,4H),1.54–1.44(m,2H),1.38(d,J＝7.2Hz,3H),1.29(s,3H),0.82(d,J＝6.6Hz,3H)； 13 C NMR(125MHz,CDCl 3 )δ199.56,170.15,142.95,142.29,140.72,133.02,125.58,125.25,119.55,70.88,67.10,59.57,54.06,44.15,43.84,38.62,36.25,36.14,33.88,33.28,32.15,30.25,29.67,19.60,18.92,16.92,15.93.HRMS(ESI):m/z calcd for C 27 H 38 NO 2 + [M+H] + :408.2897,found(408.2898)。
Example 12
To be used forMethod for synthesizing VT-35 by using same VT-34 as raw material
White solid, yield about 60%. 1 H NMR(500MHz,CDCl 3 )δ7.27(d,J＝7.9Hz,1H),7.02(d,J＝7.7Hz,1H),5.82(s,1H),3.87–3.83(m,1H),3.72–3.65(m,1H),3.03(td,J＝12.0,2.9Hz,1H),2.80(d,J＝10.8Hz,1H),2.73(dd,J＝14.7,7.0Hz,1H),2.64–2.50(m,3H),2.47(s,3H),2.46–2.37(m,3H),2.33(s,3H),2.18(d,J＝5.4Hz,1H),2.02(ddd,J＝13.2,5.0,2.5Hz,1H),1.94–1.69(m,6H),1.50–1.44(m,1H),1.42(d，J＝7.2Hz，3H)，1.28(s，3H)，0.86(d，J＝6.6Hz，4H)； 13 C NMR(125MHz，CDCl 3 )δ199.38，169.81，143.83,143.27,141.26,132.72,125.18,123.89,120.26,70.67,67.34,64.61,59.48,43.65,42.66,41.75,38.48,36.13,34.27,33.75,33.07,29.96,29.50,28.42,19.11,16.74,15.98,12.88.HRMS(ESI):m/z calcd for C 28 H 40 NO 2 + [M+H] + :422.3054,found(422.3055)。
Example 13
Method for synthesizing VT-36 by taking VT-25 as raw material and using VT-34 as raw material
White solid, yield about 58%. 1 H NMR(500MHz,CDCl 3 )δ7.26(d,J＝7.7Hz,1H),7.02(d,J＝7.7Hz,1H),5.98–5.90(m,1H),5.82(d,J＝1.1Hz,1H),5.25–5.15(m,2H),3.83(s,1H),3.72–3.65(m,1H),3.55(d,J＝11.1Hz,1H),3.04(td,J＝11.9,3.1Hz,2H),2.87(d,J＝10.1Hz,1H),2.73(dd,J＝14.7,7.0Hz,1H),2.64–2.37(m,7H),2.31(s,3H),2.03(ddd,J＝13.2,5.0,2.5Hz,1H),1.93–1.59(m,5H),1.50–1.43(m,1H),1.40(d,J＝7.0Hz,3H),1.29(s,3H),0.87(d,J＝6.6Hz,3H). 13 C NMR(125MHz,CDCl 3 )δ199.47,169.90,143.90,143.20,141.40,135.07,132.71,125.31,124.41,120.40,117.85,71.88,67.70,67.28,59.61,56.24,43.78,41.20,38.61,36.25,34.42,33.87,33.20,30.10,29.62,27.97,19.45,16.89,16.14,14.31.HRMS(ESI):m/z calcd for C 30 H 42 NO 2 + [M+H] + :448.3210,found 448.3216。
Example 14
VT-34 is used as raw material, and the synthesis method is the same as VT-10
White solid, yield about 51%. 1 H NMR(500MHz,MeOD)δ7.11(d,J＝7.8Hz,1H),7.03(d,J＝7.7Hz,1H),5.85(d,J＝1.6Hz,1H),3.76–3.69(m,1H),3.44–3.37(m,1H),3.11–2.90(m,4H),2.76(dt,J＝13.2,6.6Hz,1H),2.49(qdd,J＝14.3,10.9,4.7Hz,5H),2.34(s,3H),2.24–2.06(m,2H),1.95–1.73(m,3H),1.69–1.47(m,2H),1.43(d,J＝7.3Hz,3H),1.38–1.27(m,1H),1.23(t,J＝11.6Hz,2H),1.18(s,2H),0.94(d,J＝6.6Hz,3H).HRMS(ESI):m/z calcd for C 27 H 39 N 2 O 2 + [M+H] + :423.3006,found(423.3001)。
Example 15
VT-34 is used as raw material, and the synthesis method is the same as VT-10
White solid, yield about 53%. 1 H NMR(500MHz,MeOD)δ7.10(d,J＝7.8Hz,2H),7.01(dd,J＝7.7,3.6Hz,2H),5.83(d,J＝1.7Hz,1H),3.82(s,3H),3.78(s,1H),3.70–3.63(m,2H),3.33(dd,J＝9.6,3.6Hz,1H),3.03–2.96(m,4H),2.82–2.73(m,3H),2.63–2.34(m,9H),2.33(s,6H),2.26–2.16(m,2H),2.06(d,J＝12.6Hz,2H),1.73–1.47(m,5H),1.40(d,J＝7.2Hz,5H),1.36–1.27(m,2H),1.26–1.11(m,8H),0.91(d,J＝6.6Hz,5H).HRMS(ESI):m/z calcd for C 28 H 41 N 2 O 2 + [M+H] + :437.3163,found 437.3168。
Example 16
VT-34 is used as raw material, and the synthesis method is the same as VT-10
White solid, yield about 55%. 1 H NMR(500MHz,MeOD)δ7.10(d,J＝7.8Hz,2H),7.03(dd,J＝7.7,3.8Hz,2H),5.84(d,J＝1.7Hz,1H),4.10–4.00(m,3H),3.75–3.67(m,2H),3.42–3.35(m,2H),3.07–2.73(m,9H),2.64–2.38(m,9H),2.33(s,6H),2.26–2.16(m,2H),2.08(d,J＝13.0Hz,2H),1.81–1.47(m,6H),1.41(d,J＝7.3Hz,6H),1.27–1.13(m,13H),0.93(d,J＝6.6Hz,6H).HRMS(ESI):m/z calcd for C 29 H 43 N 2 O 2 + [M+H] + :451.3319,found(451.3315)。
Example 17
VT-34 is used as raw material, and the synthesis method is the same as VT-10
White solid, yield about 47%. 1 H NMR(500MHz,MeOD)δ7.13(d,J＝7.8Hz,1H),7.06(d,J＝7.8Hz,1H),5.99(s,1H),3.81–3.74(m,1H),3.52–3.42(m,1H),3.16–2.96(m,3H),2.83–2.40(m,7H),2.35(s,3H),2.12(d,J＝12.8Hz,1H),1.72–1.55(m,2H),1.45(d,J＝7.2Hz,3H),1.40–1.22(m,5H),1.20(s,3H),0.97(d,J＝6.6Hz,3H).HRMS(ESI):m/z calcd for C 28 H 41 N 4 O 2 + [M+H] + :465.3224,found(465.4226)。
Example 18
VT-34 is used as raw material, and the synthesis method is the same as VT-10
Pale yellow solid was obtained in about 35% yield. 1 H NMR(500MHz,MeOD)δ7.11(d,J＝7.8Hz,1H),7.01(d,J＝7.7Hz,1H),5.94(s,1H),3.70–3.63(m,1H),3.34(dd,J＝9.9,4.0Hz,1H),2.99(t,J＝11.2Hz,2H),2.82–2.71(m,3H),2.60–2.35(m,6H),2.33(s,3H),2.10–1.94(m,3H),1.73–1.53(m,3H),1.41(d,J＝7.2Hz,3H),1.36–1.23(m,2H),1.18(s,3H),1.17–1.09(m,1H),0.91(d,J＝6.6Hz,3H).HRMS(ESI):m/zcalcd for C 28 H 41 N 4 OS + [M+H] + :481.2996,found(481.2993)。
Example 19
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VT-34 is used as raw material, and the synthesis method is the same as VT-10
White solid, yield about 47%. 1 H NMR(500MHz,MeOD)δ7.12(d,J＝7.8Hz,1H),7.03(d,J＝7.7Hz,1H),6.00(s,1H),3.75–3.69(m,1H),3.44–3.38(m,1H),3.08–3.92(m,3H),2.79–2.66(m,2H),2.59–2.39(m,5H),2.34(s,3H),2.31–2.20(m,1H),2.10(d,J＝12.8Hz,1H),1.97(d,J＝12.9Hz,1H),1.79(s,1H),1.69–1.56(m,2H),1.52(s,9H),1.42(d,J＝7.2Hz,3H),1.26–1.20(m,1H),1.18(s,3H),0.94(d,J＝6.6Hz,3H).HRMS(ESI):m/z calcd for C 32 H 48 N 3 O 3 + [M+H] + :522.3690,found 522.3693。
Example 20
VT-34 is used as raw material, and the synthesis method is the same as VT-10
White solid, yield about 30%. 1 H NMR(500MHz,MeOD)δ7.10(d,J＝7.8Hz,1H),6.96(d,J＝7.8Hz,1H),5.83(d,J＝1.4Hz,1H),3.55–3.47(m,1H),3.19–3.12(m,1H),3.01–2.95(m,1H),2.85–2.66(m,3H),2.58–2.35(m,6H),2.31(s,3H),2.27–2.14(m,1H),2.08–1.94(m,3H),1.68–1.42(m,4H),1.35(d,J＝7.2Hz,3H),1.33–1.25(m,1H),1.18(s,3H),1.08–0.99(m,1H),0.83(d,J＝6.6Hz,3H).HRMS(ESI):m/z calcd for C 27 H 40 N 3 O + [M+H] + :422.3166,found 422.3169。
Example 21
VT-34 (120 mg,0.29 mmol) was dissolved in CH 3 Adding CeCl into OH under ice bath condition 3 ·7H 2 O (143 mg,0.38 mmol), naBH 4 (19 mg,0.50 mmol) was added to the reaction mixture in three portions, reacted for 30min, and after completion of the reaction by TLC plate, quenched with water and extracted with DCM. Anhydrous Na for organic phase 2 SO 4 Drying, filtration and concentration gave crude product which was purified by silica gel column chromatography (PE/ea=1:1-EA) to give VT-44 (103 mg, 85%) as a white solid.
1 H NMR(500MHz,MeOD)δ7.09(d,J＝7.7Hz,1H),6.98(d,J＝7.8Hz,1H),5.36(s,1H),4.15–4.09(m,1H),3.70–3.62(m,1H),3.34(dd,J＝9.9,3.9Hz,1H),3.03–2.88(m,2H),2.82–2.67(m,2H),2.52–2.34(m,4H),2.33(s,3H),2.24–2.15(m,1H),2.07(d,J＝12.6Hz,1H),1.92(d,J＝9.3Hz,1H),1.78–1.44(m,5H),1.41(d,J＝7.2Hz,3H),1.32–1.20(m,2H),1.17(s,3H),1.16–1.09(m,1H),0.91(d,J＝6.6Hz,3H)； 13 C NMR(125MHz,MeOD)δ146.79,145.74,144.28,139.30,133.94,126.46,126.31,120.78,69.96,68.61,67.61,62.31,53.32,45.62,43.82,38.45,36.74,36.46,33.62,31.85,31.15,30.36,29.38,21.11,18.80,18.78,16.05.HRMS(ESI):m/z calcd for C 27 H 40 NO 2 + [M+H] + :410.3054,found410.3055。
Example 22
VT-36 is used as raw material, the synthesis method is the same as that of VT-10 white solid, and the yield is about 45 percent. 1 H NMR(500MHz,CDCl 3 )δ7.25(d,J＝7.9Hz,1H),7.01(d,J＝7.5Hz,1H),5.98–5.90(m,1H),5.87(d,J＝1.7Hz,1H),5.21(t,J＝13.7Hz,2H),3.87(s,3H),3.86(s,1H),3.72–3.65(m,1H),3.58(dd,J＝14.2,4.5Hz,1H),3.11–2.86(m,5H),2.73–2.67(m,1H),2.58–2.34(m,8H),2.30(s,4H),2.24–2.17(m,1H),1.95–1.83(m,4H),1.67(ddd,J＝19.7,12.5,5.4Hz,3H),1.52(td,J＝13.9,5.0Hz,1H),1.40(d,J＝7.1Hz,3H),1.39–1.18(m,7H),1.15(s,3H),0.96–0.89(m,1H),0.87(d,J＝6.6Hz,4H).HRMS(ESI):m/z calcd for C 31 H 45 N 2 O 2 + [M+H] + :477.3476,found 477.3472。
Example 23
VT-36 is used as raw material, and the synthesis method is the same as VT-10
1 H NMR(500MHz,CDCl 3 )δ7.25(d,J＝7.8Hz,1H),7.02(d,J＝7.6Hz,1H),5.99–5.91(m,1H),5.89(d,J＝1.6Hz,1H),5.24–5.17(m,3H),4.15–4.07(m,3H),3.84(s,1H),3.72–3.65(m,1H),3.57(d,J＝11.3Hz,1H),3.07–2.93(m,4H),2.87(d,J＝10.6Hz,1H),2.70(dt,J＝12.3,6.1Hz,1H),2.58–2.34(m,8H),2.31(s,4H),2.22(ddd,J＝17.4,14.7,5.1Hz,1H),1.87(dtd,J＝15.0,12.7,6.8Hz,4H),1.72–1.59(m,3H),1.53(td,J＝13.8,4.8Hz,1H),1.40(d,J＝7.1Hz,4H),1.38–1.23(m,11H),1.20(s,1H),1.15(s,3H),0.93–0.88(m,1H),0.87(d,J＝6.6Hz,4H).HRMS(ESI):m/z calcd for C 32 H 47 N 2 O 2 + [M+H] + :491.3632,found 491.3635。
Example 24
Veratramine (500 mg,1.2 mmol) was dissolved in THF, py (967 mg,12.2 mmol) was added under ice-bath conditions, and then CH was slowly added dropwise 3 COCl (960 mg,12.2 mmol), after the addition, the ice bath was removed, the reaction was carried out at room temperature for 1h, and the reaction was monitored by a spot plateAfter completion, quench by addition of sodium bicarbonate solution until no bubbles were generated, extract with DCM (10 ml×3), combine the organic phases, distill the concentrated crude product under reduced pressure, and then obtain intermediate as a white solid by silica gel column chromatography (4819 mg, 75%). The intermediate (200 mg,0.37 mmol) was taken up in DCM and NaHCO was added 3 (63 mg,0.75 mmol) was added to the ice bath, and after removal of the ice bath, reacted at room temperature for 2h, purified by silica gel column chromatography to give VT-47 (135 mg, 66%) as a white solid. HRMS (ESI) m/z calcd for C 33 H 46 NO 6 + [M+H] + :552.3320,found(552.3324)。
1 H NMR(500MHz,CDCl 3 )δ7.01(t,J＝8.3Hz,2H),6.87(ddd,J＝21.0,16.6,7.7Hz,2H),5.26(s,1H),5.19(s,1H),5.10(d,J＝10.5Hz,1H),5.05–4.96(m,1H),4.84–4.78(m,1H),4.31(t,J＝12.7Hz,1H),4.03(d,J＝9.8Hz,1H),3.46(s,1H),3.32–3.20(m,2H),3.13(dd,J＝13.9,4.3Hz,1H),3.07–3.04(m,1H),2.99–2.83(m,4H),2.73–2.54(m,3H),2.52–2.35(m,3H),2.23(d,J＝8.2Hz,4H),2.21–2.08(m,6H),2.04(dd,J＝14.8,7.5Hz,15H),1.99–1.88(m,5H),1.87(d,J＝3.8Hz,3H),1.83–1.39(m,16H),1.34–1.23(m,6H),1.20(d,J＝5.4Hz,3H),1.12(dd,J＝9.0,2.9Hz,6H),1.06(d,J＝7.1Hz,2H).HRMS(ESI):m/z calcd for C 33 H 46 NO 6 + [M+H] + :552.3320,found(552.3324)。
Example 25
Veratramine (120 mg,0.27 mmol) was dissolved in THF, pyridine (214. Mu.l, 2.66 mmol) was added, acetyl chloride (188. Mu.l, 2.66 mmol) was added dropwise under ice bath conditions, the reaction was continued for 30 minutes, and after completion of the TLC plate monitoring, saturated NaHCO was added 3 Quenching the solution, and the organic phase with anhydrous Na 2 SO 4 Dried, concentrated under reduced pressure and purified by silica gel column chromatography (PE/ea=5:1-1:1) to give the intermediateWhite solid (58 mg, 44%).
1 H NMR(500MHz,CDCl 3 )δ7.22(d,J＝7.8Hz,1H),6.97(d,J＝7.7Hz,1H),5.52(brd,J＝5.2Hz,1H),4.70–4.62(m,1H),3.54–3.46(m,1H),3.29(s,1H),2.96–2.30(m,2H),2.79(dd,J＝14.8,7.3Hz,1H),2.65–2.54(m,2H),2.53–2.42(m,2H),2.39–2.34(m,1H),2.32(s,3H),2.17–2.08(m,1H),2.05(s,3H),2.04–1.97(m,2H),1.94–1.80(m,4H),1.72–1.69(m,2H),1.40(d,J＝7.2Hz,3H),1.37–1.29(m,2H),1.25(s,2H),1.16(s,3H),1.00(dd,J＝23.1,12.0Hz,1H),0.83(d,J＝6.6Hz,3H)； 13 C NMR(125MHz,CDCl 3 )δ170.63,144.01,143.11,141.47,140.34,132.82,125.39,123.14,120.04,74.04,70.82,67.12,56.98,54.04,44.10,41.30,37.90,37.11,36.23,32.05,30.61,30.49,29.82,27.61,21.55,19.50,19.29,18.92,15.96.HRMS(ESI):m/z calcd for C 29 H 42 NO 3 + [M+H] + :452.3159,found 452.3155。
Synthesis method and VT-47 (the intermediate is obtained by peroxidation of mCPBA)
1 H NMR(500MHz,CDCl 3 )δ7.01(t,J＝12.0Hz,1H),6.85(ddd,J＝24.1,18.1,7.7Hz,1H),4.93(d,J＝9.9Hz,1H),4.18(s,1H),3.93(d,J＝5.2Hz,1H),3.72(s,1H),3.39–3.02(m,5H),2.96–2.34(m,11H),2.23(d,J＝5.8Hz,4H),2.14(s,6H),2.12–1.89(m,6H),1.87(d,J＝4.0Hz,6H),1.81–1.34(m,10H),1.27–1.19(m,5H),1.15(d,J＝8.4Hz,6H),1.08(d,J＝7.0Hz,3H).HRMS(ESI):m/z calcd for C 29 H 42 NO 4 + [M+H] + :468.3108,found 468.3109.HRMS(ESI):m/z calcd for C 29 H 42 NO 4 + [M+H] + :468.3108,found(468.3109)。
Example 26
Veratramine (500 mg,1.22 mmol) was dissolved in THF and Et was added 3 N (1236 mg,12.22 mmol) followed by FmocCl (3161 mg,12.22 mmol) in THF was added at room temperatureThe reaction was carried out for 1h, quenched with water, and the organic phase was separated, concentrated and purified by column chromatography on silica gel (PE/ea=5:1) to give the white intermediate. The intermediate (200 mg,0.37 mmol) was taken up in DCM and NaHCO was added 3 (63 mg,0.75 mmol) was added to mCPBA (97 mg,0.56 mmol) in ice bath, and after removal of the ice bath, reacted at room temperature for 2h, purified by silica gel column chromatography (PE/ea=4:1) to give a white intermediate. The intermediate was then dissolved in DMF, 2ml piperidine was added, stirred at room temperature for 30min, after TLC monitoring the reaction was complete, 5ml water was added three times water wash and extracted with DCM, the organic phase was taken up in anhydrous Na 2 SO 4 Dried, filtered and concentrated to give crude product, which was prepared by preparing plates over silica gel to give a white solid (62 mg, 32%).
1 H NMR(500MHz,CDCl 3 )δ7.20–7.15(m,1H),6.93(d,J＝7.7Hz,1H),6.87(d,J＝7.7Hz,1H),3.99–3.91(m,1H),3.51–3.42(m,1H),3.24(ddd,J＝12.7,9.2,3.1Hz,2H),3.07(d,J＝4.7Hz,1H),3.01–2.86(m,3H),2.73–2.59(m,2H),2.53–2.38(m,4H),2.28(d,J＝7.0Hz,4H),2.23–1.91(m,9H),1.90–1.40(m,11H),1.37(dd,J＝7.2,3.3Hz,5H),1.25(s,1H),1.18(s,3H),1.11(s,1H),1.02–0.94(m,1H),0.81(d,J＝6.6Hz,4H).HRMS(ESI):m/z calcd for C 27 H 40 NO 3 + [M+H] + :426.3003,found 426.3005。
Comparative example 1
VT-48 (100 mg,0.21 mmol) was dissolved in (THF: H) 2 O=3:1), F is added dropwise to the mixed solution 3 CCOOH (48 mg,0.42 mmol), stirred at room temperature for 6h, after completion of the spot-on-plate monitoring reaction, naHCO was added 3 The solution was quenched, extracted with DCM (5 ml. Times.3), the organic phases combined, concentrated to dryness under reduced pressure, and purified by column chromatography over silica gel (DCM/CH 3 Oh=10:1) to afford VT-49 as a white solid.
1 H NMR(500MHz,MeOD)δ7.08(d,J＝6.9Hz,1H),7.00(d,J＝7.7Hz,1H),6.92(d,J＝7.2Hz,1H),6.80(d,J＝7.7Hz,1H),4.24–3.94(m,6H),3.66(s,2H),3.22–3.12(m,3H),2.90(dd,J＝33.7,12.3Hz,2H),2.65–2.55(m,2H),2.37(t,J＝13.2Hz,2H),2.30–2.17(m,9H),2.16(s,6H),2.14–1.88(m,9H),1.84(d,J＝7.3Hz,9H),1.71–1.47(m,6H),1.29(t,J＝4.4Hz,11H),1.22(d,J＝6.5Hz,3H),1.16(d,J＝7.1Hz,3H),1.08(d,J＝7.1Hz,3H).HRMS(ESI):m/z calcd for C 29 H 44 NO 5 + [M+H] + :486.3214,found 486.3220。
2. Experimental materials
(1) Cell strain
HEK293/AP-1-Luc cell line: construction of Shanghai Tao Shu Biotechnology Co., ltd
Taking the AP-1/DNA interaction site as a research object, selecting a DNA binding site of 5'-TGACTCA-3', setting 4 times of repeated sequences, and constructing on a pGL4.32 vector. When the AP-1 pathway is activated, it will bind to a specific sequence, initiating transcription of the reporter gene.
(2) Plasmid(s)
(3) Oligodeoxynucleotides
(4) Reagent(s)
(5) Instrument and consumable
3. Experimental procedure (1) cell transfection
1) Preparation of blast cells HEK293 cells with early cell passage and good cell state were selected.
2) Plating before cell transfection, and plating the cells in six-hole plates, wherein the confluence of the cells is 60% -80% before transfection, and the cells are too full or too thin to be suitable for transfection.
3) Pre-transfection reagents were prepared using lipofectamine2000 as the transfection reagent. Transfection was performed at a rate of 2. Mu.g plasmid, 5. Mu.l pofectamine2000 per well, and was performed according to the transfection reagent instructions.
4) After 24 hours of transfection, the cells were digested according to the state observed earlier according to 1: 10. 1:20, 1:40 into 10cm dishes, the specific ratio was determined by transfection efficiency.
5) The cells were transferred to a 10cm dish and antibiotic screening was performed by adding antibiotics 24 hours later, while non-transfected parental control was performed with hygromycin at a concentration of 100 μg/ml.
6) Changing the liquid of the cells every 3 days, adding new antibiotics at the same time, and after about 10 days, all the mother cells die, continuing waiting until the cloned cells in the cell dish grow to be visible to the naked eye, and selecting the cloned cells into a 96-well plate.
7) When the cells grow to 80% on the 96-well plate, the cells are passaged into the 24-well plate, and too few early cells grow in the 24-well plate.
8) Clones were selected for detection according to 24 well plate growth.
(2) Clone detection
1) According to 24 well plates growing well plate 96 well plate detection, 24 well plate clone confluence degree is greater than 50%, according to experience value according to different density plate 96 well plate, 96 well plate needs to be coated with Matrigel before plate plating.
2) Placing the paved plate into 5% CO 2 Culturing overnight in an incubator at 37 ℃.
3) The next day the medium was removed and replaced with 80. Mu.l of DMEM medium containing 0.1% serum.
4) PMA reagent was added to each well of a 96-well plate at a final concentration of 10nM, and the compound was incubated with cells at 5% CO 2 Incubate in incubator at 37℃for 24 hours.
5) After the incubation is completed, the fluorescent value is immediately read on the plate reader by adding the Bright Glo solution as indicated by the Bright Glo reagent product.
(3) Clone retesting
1) Clones with better signal window are screened in the early stage and transferred into a 6-well plate, after the cell confluency reaches 80%, 96-well plates are prepared for retesting, and the 96-well plates are coated with Matrigel before being plated.
2) Placing the paved plate into 5% CO 2 Culturing overnight in an incubator at 37 ℃.
3) The next day the medium was removed and replaced with DMEM medium containing 0.1% serum.
4) Veratramine was formulated as a compound solution with a final concentration of 10 μm and added to the cells.
5) In retested clones, drug wells and positive wells were added, each well with a final concentration of 10nM PMA reagent. Negative control wells were added with DMSO-containing medium. Compound and cell at 5% CO 2 Incubate in incubator at 37℃for 24 hours.
6) After the incubation is completed, the fluorescent value is immediately read on the plate reader by adding the Bright Glo solution as indicated by the Bright Glo reagent product.
(4) AP-1 reporter gene detection
1) HEK293/AP-1 cells were counted after digestion with pancreatin at 6X10 per well 4 Cells were plated in 96 Kong Baibian clear plates previously coated with matrigel.
2) Placing the paved plate into 5% CO 2 Culturing overnight in an incubator at 37 ℃.
3) The next day the medium was removed and replaced with DMEM medium containing 0.1% serum.
4) The day of the experiment compounds were dissolved in DMSO into high concentration stock solutions.
5) Mu.l of 5X compound working solution containing 5X PMA (50 nM) was added to each well of a 96-well plate, and the compound and cells were incubated at 5% CO 2 Incubate in incubator at 37℃for 24 hours.
6) After the incubation is completed, the Bright Glo solution is added as indicated by the Bright Glo reagent product. The fluorescence value is immediately read on the read trigger.
7) The inhibition rate calculation formula: inhibition% = (1-Reading) test /Reading 0.5％ DMSO )×100。
TABLE 1 proliferation inhibitory Activity of veratramine derivatives (30 μM) on HEK293/AP-1 model cells
From the above, it was found that the compound of the present invention has inhibitory activity equivalent to or superior to that of Veratramine at 30. Mu.M. At 30 μm, the compound of the invention has better inhibitory activity than Veratramine, significantly better than compound 49.
TABLE 2 proliferation inhibitory Activity of veratramine derivatives (10. Mu.M) on HEK293/AP-1 model cells
From the above, it was found that the compounds of the present invention have inhibitory activity equivalent to or superior to Veratramine at 10. Mu.M.
Effect example 2
2. NF- κB luciferase reporter gene experiments
1. Purpose of experiment
Whether the compound acts exclusively on the AP-1 signaling pathway is examined without affecting the NF- κB signaling pathway.
2. Experimental materials
(1) Cell strain
HEK293/NF- κB cell line: construction of Shanghai Tao Shu Biotechnology Co., ltd
(2) Reagent(s)
(3) Instrument and consumable
3. Experimental procedure
(1) Cell resuscitation
And quickly taking out the cells to be recovered from the liquid nitrogen tank, melting the cells in a water bath at 37 ℃, and quickly adding the cells into the preheated culture medium. 1000 rpm, centrifuging for 5min, taking out the centrifuge tube, discarding supernatant, adding fresh preheated culture medium into the centrifuge tube, re-suspending cells, adding cell suspension into culture dish, and adding 5% CO 2 Culturing at 37 ℃.
(2) Cell passage
Adherent cell passaging: when the cells grow up to 80-90% of the culture dish, the cells are digested with 0.25% pancreatin, then resuspended in fresh medium, and passaged at appropriate ratios for about 2-4 days for 1 passage.
(3) Cell seeding and drug treatment
1) 1 day before detection, cells were seeded in 96-well cell plates at 40000 cells per well, 80. Mu.l of cell suspension per well, 37℃and 5% CO, according to the cell growth rate 2 Incubator, incubate overnight.
2) According to the experimental requirements, 10. Mu.l of working solution of the compound was added to each well and incubated for 1 hour, 10. Mu.l of TNFα (200 ng/ml), 5% CO were added 2 Incubators at 37℃were incubated for 24 hours in the absence of light.
3) After the incubation was completed, 50. Mu.l/well of Bright glo was added, and chemiluminescence was measured on NIVO to calculate inhibition.
4) Inhibition% = ((RFUCmpd-AVER (rfuneg. Ctrl))/(AVER (RFUDay 0) -AVER (rfuneg. Ctrl)) ×100%), wherein RFUCmpd is the luminescence value of the sample well (test compound)
RFU Blank: blank well luminescence value (cell + Medium + DMSO)
Rfuneg.ctrl: negative well luminescence value (cell+Medium+DMSO+TNFα)
TABLE 3 inhibition activity of veratramine derivatives on NF- κB signaling pathway
From the above, it is clear that the compounds of the present invention have an inhibitory activity on NF- κB signaling pathway 50 The values are all larger than IMD-0354%It is a synthetic selective NF-kB inhibitor, also inhibits the entry of NF-kB subunit p65 into the nucleus), and is both greater than 30. Mu.M; the compounds of the invention have little or no inhibitory activity on the NF- κB signaling pathway relative to IMD-0354.
Effect example 3
3. Triple negative breast cancer cell proliferation inhibition experiment
1. Purpose of experiment
The growth inhibitory effect of the compounds on MDA-MB-231 cells was examined by the Cell Titer Glo (CTG) method.
2. Experimental materials
(1) Cell strain
MDA-MB-231 cells: purchased from ATCC
(2) Reagent(s)
(3) Instrument and consumable
Other conventional instrumentation: CO 2 Incubator, ultra clean bench, centrifuge, eppendorf pipettor, etc.
3. Experimental procedure
(1) Preparation of cell culture Medium
MDA-MB-231：DMEM+10％FBS+1％ P/S
(2) Drug configuration
The compounds were diluted to experimental design concentrations with cell-corresponding culture broth.
(3) Cell proliferation assay
1) Cells were counted and plated in 384 well plates at the following densities, 40 μl per well. Placing at 37deg.C, 5% CO 2 The incubator was cultured overnight.
2) MDA-MB-231 500 cells per well, 10. Mu.l of the test compound was added to each well to bring the final concentration of the compound to that of Excel-accessory data layout. After further culturing for 72 hours, 100. Mu.l of CTG was added to each well.
3) Standing at room temperature for 10min, and measuring chemiluminescence values of all the holes on an enzyme-labeled instrument.
Table 4 proliferation inhibitory Activity of veratramine derivatives against triple negative breast cancer cells
From the above, the proliferation inhibitory activity of the compounds of the present invention against triple negative breast cancer cells was comparable to or better than that of Veratramine.
Claims (10)
1. A veratramine compound shown in a formula I or pharmaceutically acceptable salt thereof is characterized in that,
wherein,
is-> Representation->Or a mixture thereof;
x is-CO-,
R 1 Is hydrogen, C 1 ～C 6 Alkyl or-CO-R 3 ；
R 2 Is hydroxy, amino, -O-R 4 、NH-COR 5 or-NH-CS-NH 2 ；
R 4 Is hydrogen or C 1 ～C 6 An alkyl group;
R 5 is amino or-O-R 7 ；
Y is-CO-,
R 9 Is hydroxy or-O-CO-R 12 ，R 10 Is hydrogen; or R is 9 Is halogen, R 10 Hydrogen or halogen;
R 11 is hydroxy, amino OR OR 14 ；
R is hydrogen, C 1 ～C 6 Alkyl, C 2 ～C 6 Alkenyl or-CO-R 13 ；
R 14 Is hydrogen or C 1 ～C 6 An alkyl group;
R 3 、R 7 、R 12 and R is 13 Independently C 1 ～C 6 An alkyl group; the compound does not include veratramine.
2. The veratrame compound of formula I or a pharmaceutically acceptable salt thereof according to claim 1, wherein R 1 is-CO-R 3 The method comprises the steps of carrying out a first treatment on the surface of the Or, R 1 Is C 1 ～C 4 Alkyl or-CO-R 3 ；
And/or R 2 is-O-R 4 The method comprises the steps of carrying out a first treatment on the surface of the Or, R 2 is-O-R 4 or-NH-COR 5 The method comprises the steps of carrying out a first treatment on the surface of the Or, R 2 Is hydroxy, -O-R 4 or-NH-COR 5 ；
And/or R is hydrogen, C 1 ～C 4 Alkyl, C 2 ～C 4 Alkenyl or-CO-R 13 The method comprises the steps of carrying out a first treatment on the surface of the Or R is hydrogen, C 1 ～C 4 Alkyl or C 2- C 4 Alkenyl groups;
and/or R 9 Is hydroxy, R 10 Is hydrogen; or R is 9 Is halogen, R 10 Is halogen.
3. The veratramine compound shown in formula I or a pharmaceutically acceptable salt thereof according to claim 1, wherein the veratramine compound shown in formula I is the following scheme 1, scheme 2, scheme 3, scheme 4, scheme 5, scheme 6, scheme 7 or scheme 8;
Scheme 1, wherein,
is-> Representation->Or a mixture thereof;
x is-CO-,
R 1 Is hydrogen or-CO-R 3 ；
R 2 Is hydroxy, amino, -O-R 4 、NH-COR 5 or-NH-CS-NH 2 ；
R 4 Is hydrogen or C 1 ～C 6 An alkyl group;
R 5 is amino or-O-R 7 ；
Y is-CO-,
R 9 Is hydroxy or-O-CO-R 12 ，R 10 Is hydrogen; or R is 9 Is halogen, R 10 Is halogen;
R 11 is hydroxy or-O-R 14 ；
R is hydrogen, C 1 ～C 6 Alkyl, C 2 ～C 6 Alkenyl or-CO-R 13 ；
R 14 Is hydrogen or C 1 ～C 6 Alkyl group
R 3 、R 7 、R 12 And R is 13 Independently C 1 ～C 6 An alkyl group;
the compound does not include veratramine;
scheme 2, wherein,
is-> Representation->Or a mixture thereof;
x is
R 1 is-CO-R 3 ；
R 2 is-O-R 4 ；
Y is
R 9 Is hydroxy or-O-CO-R 12 ，R 10 Is hydrogen;
R 11 is-O-R 14 ；
R is hydrogen, C 1 ～C 4 Alkyl, C 2 ～C 4 Alkenyl or-CO-R 13 ；
R 14 Is hydrogen or C 1 ～C 4 Alkyl group
R 3 、R 4 、R 12 And R is 13 Independently C 1 ～C 4 An alkyl group;
the compound does not include veratramine;
scheme 3, wherein,
is->
X is-CO-,
R 1 is-CO-R 3 ；
R 2 is-O-R 4 or-NH-COR 5 ；
R 5 is-O-R 7 ；
Y is
R 9 Is hydroxy or-O-CO-R 12 ，R 10 Is hydrogen; or R is 9 Is halogen, R 10 Hydrogen or halogen; r is hydrogen or C 2 ～C 4 Alkenyl groups;
R 3 、R 4 、R 12 and R is 13 Independently C 1 ～C 4 An alkyl group;
the compound does not include veratramine;
scheme 4, wherein,
is->
X is-CO-,
R 1 Is C 1 ～C 4 Alkyl or-CO-R 3 ；
R 2 Is hydroxy, -O-R 4 or-NH-COR 5 ；
R 4 Is hydrogen or C 1 ～C 4 An alkyl group;
R 5 is-O-R 7 ；
Y is
R 9 Is hydroxy, R 10 Is hydrogen; or R is 9 Is halogen, R 10 Is halogen;
r is hydrogen, C 1 ～C 4 Alkyl or C 2- C 4 Alkenyl groups;
R 3 and R is 7 Independently C 1 ～C 4 An alkyl group;
the compound does not include veratramine;
scheme 5, wherein,
is->
X is-CO-or
R 2 Is hydroxy or-O-R 4 ；
R 4 Is hydrogen or C 1 ～C 4 An alkyl group;
y is
R 9 Is hydroxy, R 10 Is hydrogen; or R is 9 Is halogen, R 10 Is halogen;
r is hydrogen or C 1 ～C 4 An alkyl group;
scheme 6, wherein,
x is
R 1 Is hydrogen or-CO-R 3 ；
Y is-CO-,
R 9 Is hydroxy or-O-CO-R 12 ，R 10 Is hydrogen; or R is described as 9 Is halogen, R 10 Is halogen; r is R 11 Is hydroxy or-O-R 14 ；
R is hydrogen, C 1- C 4 Alkyl, C 2- C 4 Alkenyl or-CO-R 13 ；
R 3 、R 12 、R 13 And R is 14 Independently C 1 ～C 4 An alkyl group;
the compound does not include veratramine;
scheme 7, wherein,
x is
R 2 Is hydroxy, amino, -O-R 4 、NH-COR 5 or-NH-CS-NH 2 ；
R 4 Is hydrogen or C 1 ～C 4 An alkyl group;
R 5 is amino or-O-R 7 ；
Y is-CO-,
R 9 Is hydroxy or-O-CO-R 12 ，R 10 Is hydrogen; or R is described as 9 Is halogen, R 10 Hydrogen or halogen;
R 11 is hydroxy OR OR 14 ；
R is hydrogen, C 1 ～C 4 Alkyl, C 2- C 4 Alkenyl or-CO-R 13 ；
R 14 Is hydrogen or C 1 ～C 4 An alkyl group;
R 13 、R 12 and R is 7 Independently C 1 ～C 4 An alkyl group;
scheme 8, wherein,
x is-CO-;
y is
R 9 Is hydroxy, R 10 Is hydrogen; or R is 9 Is fluorine, R 10 Is fluorine;
r is C 2- C 4 Alkenyl or-CO-R 13 ；
R 13 Is C 1 ～C 4 An alkyl group.
4. The veratrame compound of formula I or a pharmaceutically acceptable salt thereof according to claim 3, wherein,
When R is 1 、R 2 、R 3 、R 4 、R 5 、R 6 、R 7 、R 12 、R 13 、R 14 Or R is C 1 ～C 6 Alkyl; the C is 1 ～C 6 Alkyl is C 1 ～C 4 An alkyl group;
and/or when R 9 Or R is 10 When halogen, the halogen is fluorine, chlorine, bromine or iodine;
and/or when R is C 2 ～C 6 In the case of alkenyl, said C 2 ～C 6 Alkenyl group is C 2 ～C 4 Alkenyl groups.
5. The veratrame compound of formula I or a pharmaceutically acceptable salt thereof according to claim 4, wherein,
when X isIn the process, X is any one of the following structures: />
And/or when X isIn the process, X is any one of the following structures: />
And/or when Y isR 9 Is halogen, R 10 In the case of hydrogen or halogen, said +.>Is->
And/or when Y isR 9 Is hydroxy or-O-CO-R 12 ，R 10 In the case of hydrogen, said +.>Is any one of the following structures: />
And/or when R is-CO-R 13 When in use, the-CO-R 13 Is that
And/or when R is C 2 ～C 4 In the case of alkenyl, said C 2 ～C 4 Alkenyl groups being
And/or when R 9 Or R is 10 When halogen, the halogen is fluorine;
and/or when R 1 、R 2 、R 3 、R 4 、R 5 、R 6 、R 7 、R 12 、R 13 、R 14 Or R is C 1 ～C 4 Alkyl; the C is 1 ～C 4 Alkyl is methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl or tert-butyl.
6. The veratrame compound represented by the formula I or a pharmaceutically acceptable salt thereof according to claim 1,
is->
And/or the number of the groups of groups,is->
7. The veratramine compound shown in the formula I or a pharmaceutically acceptable salt thereof according to claim 1, wherein the veratramine compound shown in the formula I is selected from the group consisting of,
8. A method for preparing veratrame compounds of formula I according to any one of claims 1-7, characterized in that it comprises the following scheme one, scheme two, scheme three, scheme four, scheme five, scheme six, scheme seven, scheme eight and scheme nine:
in the scheme I, in the veratramine compound shown in the formula I, X isR 1 Is C 1 -C 6 alkyl-C (=o) -when it comprises the steps of: reacting a compound shown as a formula I-a with an acylating reagent to obtain the veratramine compound shown as the formula I; wherein (1)>Y or R is as defined in any one of claims 1 to 7;
scheme II, when X in the veratramine compound shown in the formula I is-CO-; the method comprises the following steps: carrying out the oxidation reaction of the compound shown in the formula I-h to obtain the veratramine compound shown in the formula I; wherein,is->Y or R is as defined in any one of claims 1 to 7;
scheme III, in the veratrame compound shown in the formula I, X isWhen in use; which comprises the following stepsThe steps are as follows: combining a compound of formula I-b with a compound of formula R 2 NH 2 The compounds shown in the formula I undergo imidization reaction as shown in the following to obtain veratramine compounds shown in the formula I; wherein Y is- > R 2 、R 9 、R 10 、R 11 Y or R are as defined in any one of claims 1 to 7;
in the fourth scheme, when the veratram compound shown in the formula I,is->When in use; the method comprises the following steps: the compound shown in the formula I-c is subjected to the following epoxidation reaction to obtain the veratramine compound shown in the formula I; wherein X is->Y is->R 1 、R 9 Or R is 10 Is as defined in any one of claims 1 to 7;
scheme five, when Y is-CO-in the veratramine compound shown in formula I, it includes the following steps: carrying out oxidation reaction on the compound shown in the formula I-d to obtain the veratramine compound shown in the formula I; wherein,is->X is->R、R 1 Or R is 2 The definitions of any one of claims 1 to 7;
scheme six, in the veratrame compound shown in the formula I, Y isWhen in use; the method comprises the following steps: combining a compound of formula I-e with a compound of formula R 11 -NH 2 The compounds shown in the formula I undergo imidization reaction as shown in the following to obtain veratramine compounds shown in the formula I; wherein (1)>Is->X is-CO-,R 1 Is C 1 ～C 6 alkyl-C (=o) -, R, R 11 Or R is 2 All are defined asAny one of claims 1-7;
Scheme seven, when the veratrame compound shown in the formula I is shown in the specification, Y isWhen in use; r is R 9 Is halogen, R 10 When halogen; the method comprises the following steps: carrying out halogenation reaction on a compound shown in the formula I-e and a compound shown in a halogenating reagent to obtain the veratramine compound shown in the formula I; wherein (1)>Is thatX is-CO->R 1 Is C 1 ～C 6 alkyl-C (=o) -, R or R 2 The definitions of any one of claims 1 to 7;
scheme eight, it includes the following step: carrying out C-N coupling reaction on the compound shown in the formula I-f and a coupling reagent containing an R fragment to obtain the veratramine compound shown in the formula I; carrying out the chemical reaction shown below to obtain the veratramine compound shown in the formula I; wherein,y or R are as defined in the claims1-7;
scheme nine, when X is-CO-in the veratramine compound shown in the formula I; the method comprises the following steps: carrying out migration-oxidation reaction on a compound shown in the formula I-g in the presence of toluene, aluminum isopropoxide and cyclohexanone to obtain veratramine compound shown in the formula I; wherein, Is->Y or R is as defined in any one of claims 1 to 7;
9. a pharmaceutical composition comprising a veratrame compound of formula I or a pharmaceutically acceptable salt thereof as defined in any one of claims 1-7, and one or more pharmaceutically acceptable carriers.
10. Use of a veratrame compound of formula I or a pharmaceutically acceptable salt thereof according to any one of claims 1-7, or a pharmaceutical composition according to claim 9, for the preparation of an AP-1 inhibitor or for the preparation of a medicament; the medicament can be used for preventing and/or treating cell proliferative diseases;
and/or the medicament can be a medicament for preventing and/or treating a disease or disorder associated with AP-1.
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| CN202010606717.6A CN113929614B (en) | 2020-06-29 | 2020-06-29 | Veratramine compound, preparation method and application thereof |
| CN202311033271.2A CN117050136A (en) | 2020-06-29 | 2020-06-29 | Veratramine compound, preparation method and application thereof |
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| CN101570562A (en) * | 2009-06-09 | 2009-11-04 | 中国人民解放军第二军医大学 | Jervine steroid alkaloid derivatives and preparation and application thereof |
| US9902943B2 (en) * | 2012-12-21 | 2018-02-27 | Codexis, Inc. | Engineered biocatalysts and methods for synthesizing chiral amines |
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