35 results about "Morphine derivatives" patented technology

PCT No. PCT/GB96/03193 Sec. 371 Date Dec. 8, 1998 Sec. 102(e) Date Dec. 8, 1998 PCT Filed Dec. 20, 1996 PCT Pub. No. WO97/22606 PCT Pub. Date Jun. 26, 1997Morphine derivatives of formula (I), process for perparing them and their use and use as analgesics.

A morphinan derivative represented by the following general formula (I)

(in the formula, R¹ represents hydrogen, C_1-6 alkyl, cycloalkylalkyl (the cycloalkyl moiety has 3 to 6 carbon atoms, and the alkylene moiety has 1 to 5 carbon atoms), aralkyl (the aryl moiety has 6 to 10 carbon atoms, and the alkylene moiety has 1 to 5 carbon atoms) and the like,

R² represents hydrogen, C_1-6 alkyl, C_3-6 cycloalkyl, C_6-10 aryl, aralkyl (the aryl moiety has 6 to 10 carbon atoms, and the alkylene moiety has 1 to 5 carbon atoms) and the like,

R³, R⁴ and R⁵ represent hydrogen, hydroxy, carbamoyl, C_1-6 alkoxy, C_6-10 aryloxy and the like,

R^6a, R^6b, R⁷, R⁸, R⁹, and R¹⁰ represent hydrogen and the like,

X represents O or CH₂, and

Y represents C═O, SO₂, an atomic bond and the like), or an acid addition salt thereof is used as an analgesic.

The invention relates to the field of medicine synthesis, and discloses an intermediate or application of a preparation method of the intermediate in total synthesis of morphine derivatives. The asymmetric hydrogenation reaction catalyzed by transition metal and the intramolecular Heck reaction in the process of preparing the intermediate are used as key reactions of total synthesis, and efficient preparation of the morphine derivative, especially representative oxycodone, is realized; wherein the total synthesis method has the advantages of excellent chemical and enantioselectivity, high synthesis efficiency, simple operation and large-scale amplification; meanwhile, the prepared intermediate product (compound 13) can be used for preparing other various morphine derivatives only through simple modification and conversion, and the method has important practical significance in changing the current single industrial production mode of depending on artificial planting, extraction and semi-synthesis of morphine derivative drugs of poppy and guaranteeing supply of morphine drugs.

The invention belongs to the field of pharmacy, and relates to a fused ring morphines derivative, and a preparation method therefor and application thereof. The invention particularly relates to 7 alpha-(4'-substituted amino-phenyl)-6 alpha, 14 alpha-endo-ethylidene (alkenyl)-tetrahydrothebaine series derivatives of a general formula (I) and pharmaceutically acceptable salts. The derivatives of the general formula (I) are prepared by reaction of thebaine and substituted styrenes reagents and a series of conversion, and 7 alpha-(4'-benzamido-phenyl)-6 alpha, 14 alpha-endo-ethylidene (alkenyl)-tetrahydrothebaine is a typical high-selectivity k ligand, and can be used for preparing drugs for stopping pain, resisting depression, resisting opiate addiction, relieving itching and the like. The formula is as shown in the specification.

The invention relates to new morphine derivatives deuterated at the 7,8-position of the morphine ring, furthermore to a process for the preparation thereof, and to pharmaceutical compositions comprising them. The new deuterated morphine derivatives show high and selective μ-opioid receptor binding activity leading to the benefit of higher analgesic activity at lower dosages inducing thereby reduced adverse effects compared to the hydrogenated derivatives. The compounds of the invention are useful for example in the treatment of pain or can be used as antitussive agents with a reduced risk of the possibility of drug abuse.

The invention discloses a synthetic method of a morphine derivative. The method employs morphine as an initial raw material, and selective protection and glycosylation are carried out in order to obtain a target product. The HPLC purity of M3G obtained by the synthetic method reaches 99.8%, and the M3G can be used as a reference substance or a standard substance for researching quality of relatedproducts.

The present invention relates to novel morphine-6-glucuronide derivatives, to pharmaceutical compositions containing them and to uses thereof. Said derivatives have the following structures, where the group Pcntite (A), except substituents X, is called MR36G-NR1 R2-S-, R1 = saturated or unsaturated, straight- or branched-chain C1-C10 alkyl, the alkyl chain being optionally interrupted by one or more heteroatoms selected from O, S and N, R2 = H, saturated or unsaturated, straight- or branched-chain C1-C5 alkyl, or an aryl, heteroaryl or (C1-C5) alkylaryl group, R3 = Y(C=Z)R or YR, Y and Z independently = O or S, R = saturated or unsaturated, straight- or branched-chain C1-C6 alkyl with the proviso that R3 is not -O-CH3, X = H, an -S-R4-W group, or a MR,6G-NR I R2-S- group, with R4 = saturated or unsaturated, straight- or branched-chain C1 -C8 alkyl which can include amide, ester or ether bonds and W is either a d-receptor antagonist, or a K-receptor antagonist and a pharmaceutically acceptable salt thereof.

The invention belongs to the field of pharmacy, and relates to a 7alpha-methyl fused ring morphine compound with a formula I and a formula II as well as a preparation method and an application of the 7alpha-methyl fused ring morphine compound. The compounds are prepared through a reaction of thebaine and a substituted styrene reagent and through a series of conversion methods, have opioid receptor binding activity, and multiple compounds including SLL-604, SLL-627 and SLL-631 are selective kappa receptor ligands or mu/kappa dual ligands. The method can be applied to research and development in the treatment fields of pain easing, depression resisting, opioid drug addiction withdrawal, itching relieving and the like.

The invention belongs to the field of synthesis of chemical drugs, and particularly relates to a novel synthesis method of a morphine derivative buprenorphine. Based on a possible biogenic pathway of morphine derivatives, a thibaine analogue intermediate is synthesized by taking an intramolecular oxidation dearomatization Heck reaction as a key reaction through a biomimetic synthesis strategy, and by starting from the intermediate through a Diels-Alder reaction, catalytic hydrogenation, addition with a tert-butyl Grignard reagent, removal of a secondary amine protecting group, introduction of cyclopropyl methyl, and removal of methyl and the like, efficient synthesis of the morphine derivative buprenorphine is realized. Compared with the existing route, the synthesis route has the advantages of few steps, high total yield and obvious reduction of the production cost.

The invention provides a morphine derivative crystal form III represented as the formula (1). Through Cu-K[alpha] radiation, the crystal form has diffraction peaks in an X-ray powder diffraction diagram with (2[theta] +/- 0.5) being 9.36, 13.24, 14.74, 15.22, 16.22, 17.50, 19.90, 20.92 and 22.98 degrees. In addition, the invention also discloses a preparation method of the crystal form, a medicine composition of the crystal form and an application thereof. The crystal form III, compared with the crystal forms in the prior art, is quick to dissolve, has high bioavailability and is suitable for industrialization.

There is provided an improved and convenient process for the synthesis of aporphines, such as apomorphine and apocodeine, by the rearrangement of the corresponding morphine or codeine derivatives. The use of a suitable water scavenger in an acid catalyzed rearrangement of the morphine derivatives unexpectedly results in a reaction temperature convenient for plant operation without sacrificing product. The method of the present invention also alleviates the cumbersome operations that were employed in the prior art to eliminate water from the reaction mixture at the elevated temperatures. This process is adaptable for the general preparation of other aporphines from the corresponding morphine congeners.

The invention discloses a stereoselective synthesis method of 6β-hydroxyl-7,8-dihydro-morphine derivatives. The synthesis method comprises the following steps: (i) the compound of formula VI is in a hydrophilic organic solvent, In the presence of a catalytic amount of C1-C4 alkanoic acid, it is reduced to a compound of formula VII by sodium borohydride; (ii) the compound of formula VII obtained in step (i) is separated to obtain a compound of formula VIII; here, in formula VI, formula VII and VIII For the definition of substituents, please refer to the specification.