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Crystal forms of octahydropyrrolo[3,4-c]pyrrole derivatives

A crystal form and drug technology, applied in drug combinations, medical preparations containing active ingredients, allergic diseases, etc., can solve problems such as low oral bioavailability, poor water solubility, and poor druggability

Active Publication Date: 2022-07-26
SUNSHINE LAKE PHARM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The inventor found that the compound has poor water solubility, low oral bioavailability, poor stability, and poor druggability when studying the compound, so it is necessary to find a solid form with better druggability

Method used

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  • Crystal forms of octahydropyrrolo[3,4-c]pyrrole derivatives
  • Crystal forms of octahydropyrrolo[3,4-c]pyrrole derivatives
  • Crystal forms of octahydropyrrolo[3,4-c]pyrrole derivatives

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0093] Embodiment 1 Crystal form I of the present invention

[0094] 1. Preparation of Form I

[0095] The compound represented by formula (I) (307 g) was prepared with reference to the method of Example 3 in International Application WO 2017088759 A1, which was dissolved in DMF (614 mL), heated to 80° C., stirred for 0.5 h, and then slowly cooled to room temperature. , crystallization, suction filtration, the filter residue was washed with water (50 mL × 2), and air-dried at 70° C. to obtain an off-white solid powder.

[0096] 2. Identification of Form I

[0097] (1) Identification by Empyrean X-ray powder diffraction (XRPD) analysis: using Cu-Kα radiation, with the following characteristic peaks represented by the angle 2θ: 7.44°, 7.78°, 8.24°, 12.69°, 12.95°, 14.08°, 14.75 °,15.03°,17.75°,19.71°,20.12°,20.81°,21.30°,21.89°,22.18°,23.27°,25.49°,25.85°,26.08°,26.60°,27.21°,27.44°,27.70°, 28.53°, with an error tolerance of ±0.2°.

[0098] (2) Identification by TA Q2000...

Embodiment 2

[0099] Example 2 Crystal form VIII of the present invention

[0100] 1. Preparation of Form VIII

[0101] The crystalline form I (500 mg) of the compound represented by the formula (I) was added to DMF (2.0 mL), stirred to dissolve, and then dropped into tert-butanol (5 mL), stirred for 24 h, the reaction was stopped, suction filtered, and dried An off-white solid powder was obtained.

[0102] 2. Identification of Form VIII

[0103] (1) Identification by Empyrean X-ray Powder Diffraction (XRPD) analysis: using Cu-Kα radiation, it has the following characteristic peaks represented by angle 2θ: 8.70°, 10.88°, 13.09°, 14.67°, 14.92°, 16.01°, 17.48 °,18.13°,18.73°,19.66°,21.60°,21.95°,22.92°,23.41°,23.92°,24.93°,26.42°,27.76°,29.65°,30.93°,31.72°,33.17°,33.73°, 35.49°, 38.05°, there is an error tolerance of ±0.2°.

[0104] (2) Identification by TA Q2000 Differential Scanning Calorimetry (DSC) analysis: the scanning speed is 10°C / min, the endothermic peak at 159.78°C is inc...

Embodiment 3

[0105] Example 3 Crystal form XIII of the present invention

[0106] 1. Preparation of Form XIII

[0107] The crystalline form I (50 mg) of the compound represented by formula (I) was added to acetone (1.0 mL), and the mixture was suspended and stirred at 50° C. for 24 h. The reaction was stopped, filtered with suction, and dried to obtain an off-white solid powder.

[0108] 2. Identification of Form XIII

[0109] (1) Identification by Empyrean X-ray powder diffraction (XRPD) analysis: using Cu-Kα radiation, with the following characteristic peaks represented by angle 2θ: 7.18°, 8.28°, 12.37°, 13.45°, 14.26°, 14.87°, 17.48 °,17.90°,19.35°,19.95°,20.71°,21.23°,21.45°,22.11°,23.16°,24.95°,25.55°,26.82°,27.07°,27.35°,28.40°,28.94°,29.40°, 29.99°, with an error tolerance of ±0.2°.

[0110](2) Identification by TA Q2000 Differential Scanning Calorimetry (DSC) analysis: the scanning speed is 10°C / min, containing endothermic peaks at 146.79°C and 164.21°C, with an error toler...

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Abstract

The present invention relates to crystal forms of octahydropyrrolo[3,4-c]pyrrole derivatives. The present invention also relates to a pharmaceutical composition comprising the crystalline form, and the use of the crystalline form or the pharmaceutical composition in the manufacture of a medicament for preventing, treating or alleviating orexin receptor-related diseases.

Description

technical field [0001] The invention belongs to the technical field of medicine, and relates to a crystal form of octahydropyrrolo[3,4-c]pyrrole derivatives, in particular to (5-(5-chlorobenzo[d]oxazol-2-yl)hexahydropyrrole) The crystalline form and The use thereof further relates to a pharmaceutical composition comprising the crystalline form. Background technique [0002] Orexin, also known as hypocretin, orexin, which includes orexin A and orexin B (or hypocretin-1 and hypocretin-2), is a hormone secreted by the hypothalamus. Its main physiological functions are: 1. Regulating feeding, orexin can activate neurons that regulate feeding, significantly promote feeding, and has a dose-dependent response; 2. Participate in the regulation of energy metabolism, orexin can significantly increase metabolism 3. Participate in the regulation of sleep-awakening, orexin can inhibit rapid eye movement sleep, prolong the awakening time, and block the effect of orexin can promote sleep...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D487/04A61P25/00A61P25/18A61P25/20A61P25/22A61P25/24A61P25/04A61P25/06A61P25/28A61P25/30A61P25/08A61P1/00A61P9/00A61P29/00A61P3/10A61P3/00A61P37/00A61P5/00A61P9/12A61K31/423
CPCC07D487/04A61P25/00A61P25/18A61P25/20A61P25/22A61P25/24A61P25/04A61P25/06A61P25/28A61P25/30A61P25/08A61P1/00A61P9/00A61P29/00A61P3/10A61P3/00A61P37/00A61P5/00A61P9/12C07B2200/13
Inventor 金传飞许腾飞梁海平
Owner SUNSHINE LAKE PHARM CO LTD
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