Central Drug Research Institute, Lucknow-226 001 Several protoberberine alkaloids have been isolated from Corydalis meifolia, C. govaniana, Stephania glabra and Cocclaus pendulus. The structure and stereo-chemistry of new bases have been assigned. Biosynthesis, and positive and negative chemical ionization mass spectral studies of some protoberberine alkaloids have been carried out
The root of Rerberis floribunda, Wall. ex Don. has yielded eight alkaloids, e g., oxyacanthine, berb...
Berberine azide, berberine thiocyanate, and 8-cyano-8H-berberine were prepared from berberine chlori...
NMR spectral analysis has been used to deduce conformational structure la for thalic-tricavine...
Central Drug Researoh Institute, Lucknow-226 001 Several protoberberlne alkaloids have been lsolate...
A novel protoberberine alkaloid, 13-hydroxyl gusanlung A (1), was isolated from the aerial parts of ...
(±)-Thalictrifoline (14), (±)-sinactine (13) and (±)-cavidine (18) have been synthesised from trans-...
<div><p>Phytochemical investigation of the whole plants of <i>Dicranostigma leptopodum</i> (Maxim) F...
Tracer experiments show that the tetrahydroprotoberberines stepholidine (14), corydalmine (d15), cap...
RP-HPLC is the main method for the analysis of alkaloids. However, peak tailing is a problem that co...
Alkali induced disproportionation of 7,8-dimethoxy-2-(3',4'-methylenedioxyphenethyl)iso-quinolinium ...
This study aims to qualitatively analyze protoberberine alkaloids in crude extract of Coptidis Rhizo...
Tetrahydro-13-methyl-y-coptisines (V) (m.p. 195°) and (VI) (m.p. 131°) have been synthesized from l-...
New synthetic methods are explored for the synthesis of protoberberines using carbanionimine (CAI) c...
New synthetic methods are explored for the synthesis of protoberberines using carbanionimine (CAI) c...
HPLC-DAD-directed isolation and purification of the methanol extract of stems of Arcangelisia gusanl...
The root of Rerberis floribunda, Wall. ex Don. has yielded eight alkaloids, e g., oxyacanthine, berb...
Berberine azide, berberine thiocyanate, and 8-cyano-8H-berberine were prepared from berberine chlori...
NMR spectral analysis has been used to deduce conformational structure la for thalic-tricavine...
Central Drug Researoh Institute, Lucknow-226 001 Several protoberberlne alkaloids have been lsolate...
A novel protoberberine alkaloid, 13-hydroxyl gusanlung A (1), was isolated from the aerial parts of ...
(±)-Thalictrifoline (14), (±)-sinactine (13) and (±)-cavidine (18) have been synthesised from trans-...
<div><p>Phytochemical investigation of the whole plants of <i>Dicranostigma leptopodum</i> (Maxim) F...
Tracer experiments show that the tetrahydroprotoberberines stepholidine (14), corydalmine (d15), cap...
RP-HPLC is the main method for the analysis of alkaloids. However, peak tailing is a problem that co...
Alkali induced disproportionation of 7,8-dimethoxy-2-(3',4'-methylenedioxyphenethyl)iso-quinolinium ...
This study aims to qualitatively analyze protoberberine alkaloids in crude extract of Coptidis Rhizo...
Tetrahydro-13-methyl-y-coptisines (V) (m.p. 195°) and (VI) (m.p. 131°) have been synthesized from l-...
New synthetic methods are explored for the synthesis of protoberberines using carbanionimine (CAI) c...
New synthetic methods are explored for the synthesis of protoberberines using carbanionimine (CAI) c...
HPLC-DAD-directed isolation and purification of the methanol extract of stems of Arcangelisia gusanl...
The root of Rerberis floribunda, Wall. ex Don. has yielded eight alkaloids, e g., oxyacanthine, berb...
Berberine azide, berberine thiocyanate, and 8-cyano-8H-berberine were prepared from berberine chlori...
NMR spectral analysis has been used to deduce conformational structure la for thalic-tricavine...
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