PATENT CLAIM ANALYSIS

Application Number: 15781302
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["546", "261000"]

Abstract:
The present invention provides a method for producing a 2-aminonicotinic acid benzyl ester derivative. The method includes, as a step, reacting a 2-aminonicotinic acid derivative represented by the formula [I], wherein R 1  represents a hydrogen atom or a C 1  to C 4  alkyl group and M represents an alkali metal, with a benzyl derivative represented by the formula [II], wherein R 2  represents, for example, a hydrogen atom or a halogen atom, A represents, for example, a nitrogen atom, X represents a halogen atom, and Y represents, for example, an oxygen atom, in an aromatic hydrocarbon solvent in the presence of a phase transfer catalyst or a tertiary amine.

Claim (Index 3):
A method for producing a 2-aminonicotinic acid benzyl ester derivative, comprising:\n reacting a 2-aminonicotinic acid derivative represented by the following formula [VI]: wherein R 1  represents a hydrogen atom or a C 1  to C 4  alkyl group, with a compound obtained by reacting, with a halogenating agent, a benzyl alcohol derivative represented by the following formula [VII]: wherein R 2  represents a hydrogen atom, a halogen atom, a C 1  to C 4  alkyl group or a C 1  to C 4  alkoxy group, A represents a nitrogen atom or a methine group (CH), and Y represents an oxygen atom, a methylene group (CH 2 ) or a methyleneoxy group (OCH 2 ), that is, a benzyl halide derivative represented by the following formula [II]: wherein R 2 , A and Y are as defined in the formula [VII] and X 1  represents a halogen atom, in an aromatic hydrocarbon solvent in the presence of a base and a phase transfer catalyst or a tertiary amine, to produce a 2-aminonicotinic acid benzyl ester derivative represented by the following formula [III]: wherein R 1 , R 2 , A and Y are as defined in the formulae [VI] and [VII].

Metadata:
- Claim Count in Document: 5.0
- Percentile: 94.0
- Lexical Diversity: 2.0625
- Patent Class: 546.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15107649', '10540749', '14412130', '10311048', '12929659']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7678743531910011
- 35 USC 102 Novelty (BERT): 0.5099137978927875
- Combined Prediction Score: 0.7420782976611797
- Mean Citation Score: 253.95944
- Max Citation Score: 320.3514
- Similarity Product: 283.3216073742628

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

Dataset: test