35 results about "Morphine derivatives" patented technology

The present invention provides methods for the conversion of thebaine to a morphine derivative, such as hydrocodone. Novel ketal intermediates of the conversion are provided. A one-pot procedure for the conversion comprises treating thebaine with an acid in the presence of a metal catalyst.

A morphinan derivative represented by the following general formula (I):(in the formula, R1 represents hydrogen, C1-6 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, C1-6 alkyl, C3-6 cycloalkyl, C6-10 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, C1-6 alkoxy, C6-10 aryloxy and the like,R6a, R6b, R7, R8, R9, and R10 represent hydrogen and the like,X represents O or CH2, andY 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 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 present invention relates to morphinan derivatives and preparation methods thereof, especially to ketal hydroxyl protected compounds of morphinan derivatives and preparation method thereof, and to a method for preparing corresponding alkylated morphinan derivatives by using the ketal hydroxyl protected compounds as intermediates, and more especially to a ketal hydroxyl protected compound of methylnaltrexone as intermediate for preparing methylnaltrexone and a method for preparing methylnaltrexone through said intermediate.

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. 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 mogroup 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 indepre 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 = saturatendently = 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 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.

Provided is 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 is a morphine derivative gas-phase corrosion inhibitor preparing method, including the steps: mixing morphine with secondary amine, dropping in formaldehyde or aldehyde solution, making them uniformly mix and react, making acid curing reaction on the mixed solution and fatty acid / benzene carbonic acid, stirring, filtering and obtaining the object product. The raw materials such as morphine, secondary amine, formaldehyde / aldehyde, fatty acid and benzene carbonic acid are all easy to obtain and cheap, and suitable for large-scale industrialized production. The preparing course has only three steps and is relative simple, all the reactions can be completed on routine conditions, and the requirements for devices are low, thus further reducing the preparation cost. In addition, all the anticorrosive experiments show that the object product has excellent corrosion inhibiting property.

The invention provides a morphine derivative crystal form I as shown in a formula 1. By using CuK alpha to radiate the morphine derivative crystal form I, an X powder diffraction pattern has diffraction peaks at the (2theta + / -0.5) DEG of 9.42, 10.44, 13.28, 14.72, 15.32, 16.36, 24.46 and 25.46. In addition, the invention also discloses a preparation method of the crystal form, a pharmaceutical composition and application thereof. Compared with the known crystal form, the crystal form I of the application has the characteristics of high dissolving speed, high bioavailability and suitability for industrialization.

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 invention discloses a stereoselective synthesis method of 6β-hydroxymorphine derivatives. The synthesis method comprises the following steps: (i) the compound of formula VI is present in a hydrophilic organic solvent in the presence of a catalytic amount of C1-C4 alkanoic acid Next, it is reduced to the compound of formula VII by sodium borohydride; (ii) the compound of formula VII obtained in step (i) is separated to obtain the compound of formula VIII; here, the definitions of substituents in formula VI, formula VII and VIII are detailed in the instructions.