PATENT CLAIM ANALYSIS

Application Number: 15865859
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-09
Patent Classification: ["548", "418000"]

Abstract:
The present application discloses a method for producing lamellarin and a derivative thereof, which is able to greatly shorten the synthesis path of the lamellarin and the derivative thereof, and to improve the yield of the lamellarin and the derivative thereof, so as to increase use of the lamellarin or the derivative thereof in pharmaceutical industry.

Claim (Index 1):
A method for producing a compound presented by formula (I), the method comprising performing intermolecular cyclization reaction between a 3-nitrocoumarin derivative and a papaverine derivative under a pre-determined reaction condition to acquire a lamellarin or a derivative thereof, wherein the reaction condition comprises use of at least one solvent and heating, and the solvent is selected from the group consisting of an aromatic hydrocarbon, an ether, and a halogenated hydrocarbon; W is selected from the group consisting of hydrogen, chlorine, bromine, fluorine, methoxy, methyl, and cyano; X, Y, and Z are respectively and independently selected from the group consisting of hydrogen, benzyloxy, hydroxyl, chlorine, bromine, fluorine, trifluoromethyl, methoxy, methyl, and cyano; R1, R2, R7 are hydrogen respectively; R3, R5, R6 are respectively and independently selected from the group consisting of methoxy, benzyloxy, hydroxyl, and hydrogen; and R4 is selected from the group consisting of methoxy, hydroxyl, and hydrogen.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 86.0
- Lexical Diversity: 1.76471
- Patent Class: 548.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14357952', '12345249', '10765832', '11661377', '12632257']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7059686788152589
- 35 USC 102 Novelty (BERT): 0.5200008551923663
- Combined Prediction Score: 0.6873718964529697
- Mean Citation Score: 279.12598
- Max Citation Score: 312.89816
- Similarity Product: 241.49779680839544

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test