Cucurbitacin B

(R,E)-6-((2S,8S,9R,10R,13R,14S,16R,17R)-2,16-dihydroxy-4,4,9,13,14-pentamethyl-3,11-dioxo-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-6-hydroxy-2-methyl-5-oxohept-3-en-2-yl acetate

C32H46O8 (558.3192516)


Together wth other cucurbitacins, is responsible for the bitter taste and toxic props. of spoilt cucumbers. Cucurbitacin B is found in many foods, some of which are muskmelon, bitter gourd, green vegetables, and cucumber. Cucurbitacin B is found in bitter gourd. Together wth other cucurbitacins, is responsible for the bitter taste and toxic properties of spoilt cucumber Cucurbitacin B is a cucurbitacin in which a lanostane skeleton is multi-substituted with hydroxy, methyl and oxo substituents, with unsaturation at positions 5 and 23; a hydroxy function at C-25 is acetylated. It is a cucurbitacin, a secondary alpha-hydroxy ketone and a tertiary alpha-hydroxy ketone. It derives from a hydride of a lanostane. Cucurbitacin B is a natural product found in Begonia plebeja, Trichosanthes miyagii, and other organisms with data available. Cucurbitacin B belongs to a class of highly oxidized tetracyclic triterpenoids and is oral active. Cucurbitacin B inhibits tumor cell growth, migration and invasion and cycle arrest, but induces cell apoptosis. Cucurbitacin B has potent anti-inflammatory, antioxidant, antiviral, hypoglycemic, hepatoprotective, neuroprotective activity[1][2][3][4][5]. Cucurbitacin B belongs to a class of highly oxidized tetracyclic triterpenoids and is oral active. Cucurbitacin B inhibits tumor cell growth, migration and invasion and cycle arrest, but induces cell apoptosis. Cucurbitacin B has potent anti-inflammatory, antioxidant, antiviral, hypoglycemic, hepatoprotective, neuroprotective activity[1][2][3][4][5]. (+)-Cucurbitacin B. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=6199-67-3 (retrieved 2024-08-12) (CAS RN: 6199-67-3). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

   

Cucurbitacin D

17-[(E)-2,6-dihydroxy-6-methyl-3-oxohept-4-en-2-yl]-2,16-dihydroxy-4,4,9,13,14-pentamethyl-2,7,8,10,12,15,16,17-octahydro-1H-cyclopenta[a]phenanthrene-3,11-dione

C30H44O7 (516.3086874)


Cucurbitacin D is a cucurbitacin in which a lanostane skeleton is multi-substituted with hydroxy, methyl and oxo substituents, with unsaturation at positions 5 and 23. It is a cucurbitacin, a secondary alpha-hydroxy ketone and a tertiary alpha-hydroxy ketone. It derives from a hydride of a lanostane. Cucurbitacin D is a natural product found in Elaeocarpus chinensis, Elaeocarpus hainanensis, and other organisms with data available. Cucurbitacin D is found in calabash. Cucurbitacin D is isolated from plants of the Cucurbitacea Cucurbitacin D is an active component in Trichosanthes kirilowii, disrupts interactions between Hsp90 and two co-chaperones, Cdc37 and p23. Cucurbitacin D prevents Hsp90 client (Her2, Raf, Cdk6, pAkt) maturation without induction of the heat shock response. Anti-cancer activity[1]. Cucurbitacin D is an active component in Trichosanthes kirilowii, disrupts interactions between Hsp90 and two co-chaperones, Cdc37 and p23. Cucurbitacin D prevents Hsp90 client (Her2, Raf, Cdk6, pAkt) maturation without induction of the heat shock response. Anti-cancer activity[1].

   

Cucurbitacin F

2,3,16,20,25-Pentahydroxy-9-methyl-19-norlanosta-5,23-diene-11,22-dione (2beta,3alpha,9beta,10alpha,16alpha,23E)-

C30H46O7 (518.3243365999999)


   

Cucurbitacin IIb

(2S,3S,8S,9R,10R,13R,14S,16R,17R)-17-[(2R)-2,6-dihydroxy-6-methyl-3-oxoheptan-2-yl]-2,3,16-trihydroxy-4,4,9,13,14-pentamethyl-1,2,3,7,8,10,12,15,16,17-decahydrocyclopenta[a]phenanthren-11-one

C30H48O7 (520.3399858)


Cucurbitacin IIb is a natural product found in Physocarpus capitatus, Begonia heracleifolia, and other organisms with data available. Cucurbitacin IIb is an active component isolated from Hemsleya amabilis, induces apoptosis with anti-inflammatory activity. Cucurbitacin IIb inhibits phosphorylation of STAT3, JNK and Erk1/2, enhances the phosphorylation of IκB and NF-κB (p65), blocks nuclear translocation of NF-κB (p65) and decreases mRNA levels of IκBα and TNF-α[1]. Cucurbitacin IIb is an active component isolated from Hemsleya amabilis, induces apoptosis with anti-inflammatory activity. Cucurbitacin IIb inhibits phosphorylation of STAT3, JNK and Erk1/2, enhances the phosphorylation of IκB and NF-κB (p65), blocks nuclear translocation of NF-κB (p65) and decreases mRNA levels of IκBα and TNF-α[1].

   

Cucurbitacin B

acetic acid [(E,5R)-5-[(2S,8S,9R,10R,13R,14S,16R,17R)-2,16-dihydroxy-3,11-diketo-4,4,9,13,14-pentamethyl-2,7,8,10,12,15,16,17-octahydro-1H-cyclopenta[a]phenanthren-17-yl]-5-hydroxy-4-keto-1,1-dimethyl-hex-2-enyl] ester

C32H46O8 (558.3192516)


Cucurbitacin B belongs to a class of highly oxidized tetracyclic triterpenoids and is oral active. Cucurbitacin B inhibits tumor cell growth, migration and invasion and cycle arrest, but induces cell apoptosis. Cucurbitacin B has potent anti-inflammatory, antioxidant, antiviral, hypoglycemic, hepatoprotective, neuroprotective activity[1][2][3][4][5]. Cucurbitacin B belongs to a class of highly oxidized tetracyclic triterpenoids and is oral active. Cucurbitacin B inhibits tumor cell growth, migration and invasion and cycle arrest, but induces cell apoptosis. Cucurbitacin B has potent anti-inflammatory, antioxidant, antiviral, hypoglycemic, hepatoprotective, neuroprotective activity[1][2][3][4][5].

   

Cucurbitacin D

NCGC00385253-01_C30H44O7_(2S,4R,9beta,16alpha,23E)-2,16,20,25-Tetrahydroxy-9,10,14-trimethyl-4,9-cyclo-9,10-secocholesta-5,23-diene-1,11,22-trione

C30H44O7 (516.3086874)


Glycoside from leaves and fruit of Cucumis sativus (cucumber). Cucurbitacide E is found in cucumber and green vegetables. Cucurbitacin D is an active component in Trichosanthes kirilowii, disrupts interactions between Hsp90 and two co-chaperones, Cdc37 and p23. Cucurbitacin D prevents Hsp90 client (Her2, Raf, Cdk6, pAkt) maturation without induction of the heat shock response. Anti-cancer activity[1]. Cucurbitacin D is an active component in Trichosanthes kirilowii, disrupts interactions between Hsp90 and two co-chaperones, Cdc37 and p23. Cucurbitacin D prevents Hsp90 client (Her2, Raf, Cdk6, pAkt) maturation without induction of the heat shock response. Anti-cancer activity[1].

   

elatericin A

(2S,8S,9R,10R,13R,14S,16R,17R)-17-[(E,1R)-1,5-dihydroxy-2-keto-1,5-dimethyl-hex-3-enyl]-2,16-dihydroxy-4,4,9,13,14-pentamethyl-2,7,8,10,12,15,16,17-octahydro-1H-cyclopenta[a]phenanthrene-3,11-quinone

C30H44O7 (516.3086874)


Cucurbitacin D is an active component in Trichosanthes kirilowii, disrupts interactions between Hsp90 and two co-chaperones, Cdc37 and p23. Cucurbitacin D prevents Hsp90 client (Her2, Raf, Cdk6, pAkt) maturation without induction of the heat shock response. Anti-cancer activity[1]. Cucurbitacin D is an active component in Trichosanthes kirilowii, disrupts interactions between Hsp90 and two co-chaperones, Cdc37 and p23. Cucurbitacin D prevents Hsp90 client (Her2, Raf, Cdk6, pAkt) maturation without induction of the heat shock response. Anti-cancer activity[1].

   

Cuc B

(R,E)-6-((2S,8S,9R,10R,13R,14S,16R,17R)-2,16-dihydroxy-4,4,9,13,14-pentamethyl-3,11-dioxo-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-6-hydroxy-2-methyl-5-oxohept-3-en-2-yl acetate

C32H46O8 (558.3192516)


Cucurbitacin B is a cucurbitacin in which a lanostane skeleton is multi-substituted with hydroxy, methyl and oxo substituents, with unsaturation at positions 5 and 23; a hydroxy function at C-25 is acetylated. It is a cucurbitacin, a secondary alpha-hydroxy ketone and a tertiary alpha-hydroxy ketone. It derives from a hydride of a lanostane. Cucurbitacin B is a natural product found in Begonia plebeja, Trichosanthes miyagii, and other organisms with data available. A cucurbitacin in which a lanostane skeleton is multi-substituted with hydroxy, methyl and oxo substituents, with unsaturation at positions 5 and 23; a hydroxy function at C-25 is acetylated. Cucurbitacin B belongs to a class of highly oxidized tetracyclic triterpenoids and is oral active. Cucurbitacin B inhibits tumor cell growth, migration and invasion and cycle arrest, but induces cell apoptosis. Cucurbitacin B has potent anti-inflammatory, antioxidant, antiviral, hypoglycemic, hepatoprotective, neuroprotective activity[1][2][3][4][5]. Cucurbitacin B belongs to a class of highly oxidized tetracyclic triterpenoids and is oral active. Cucurbitacin B inhibits tumor cell growth, migration and invasion and cycle arrest, but induces cell apoptosis. Cucurbitacin B has potent anti-inflammatory, antioxidant, antiviral, hypoglycemic, hepatoprotective, neuroprotective activity[1][2][3][4][5].

   

Cucurbitacin_D

(2S,4R,23E)-2,16,20,25-tetrahydroxy-9beta,10,14-trimethyl-4,9-cyclo-9,10-seco-16alpha-cholesta-5,23-diene-1,11,22-trione

C30H44O7 (516.3086874)


Cucurbitacin D is a cucurbitacin in which a lanostane skeleton is multi-substituted with hydroxy, methyl and oxo substituents, with unsaturation at positions 5 and 23. It is a cucurbitacin, a secondary alpha-hydroxy ketone and a tertiary alpha-hydroxy ketone. It derives from a hydride of a lanostane. Cucurbitacin D is a natural product found in Elaeocarpus chinensis, Elaeocarpus hainanensis, and other organisms with data available. A cucurbitacin in which a lanostane skeleton is multi-substituted with hydroxy, methyl and oxo substituents, with unsaturation at positions 5 and 23. Cucurbitacin D is an active component in Trichosanthes kirilowii, disrupts interactions between Hsp90 and two co-chaperones, Cdc37 and p23. Cucurbitacin D prevents Hsp90 client (Her2, Raf, Cdk6, pAkt) maturation without induction of the heat shock response. Anti-cancer activity[1]. Cucurbitacin D is an active component in Trichosanthes kirilowii, disrupts interactions between Hsp90 and two co-chaperones, Cdc37 and p23. Cucurbitacin D prevents Hsp90 client (Her2, Raf, Cdk6, pAkt) maturation without induction of the heat shock response. Anti-cancer activity[1].

   

(3as,3bs,9as,9br,11ar)-1-[(2r)-2,6-dihydroxy-6-methyl-3-oxohept-4-en-2-yl]-2,8-dihydroxy-3a,6,6,9b,11a-pentamethyl-1h,2h,3h,3bh,4h,8h,9h,9ah,11h-cyclopenta[a]phenanthrene-7,10-dione

(3as,3bs,9as,9br,11ar)-1-[(2r)-2,6-dihydroxy-6-methyl-3-oxohept-4-en-2-yl]-2,8-dihydroxy-3a,6,6,9b,11a-pentamethyl-1h,2h,3h,3bh,4h,8h,9h,9ah,11h-cyclopenta[a]phenanthrene-7,10-dione

C30H44O7 (516.3086874)


   

(1r,2r,3as,3bs,7s,8s,9ar,9br,11ar)-1-[(2r)-2,6-dihydroxy-6-methyl-3-oxoheptan-2-yl]-2,7,8-trihydroxy-3a,6,6,9b,11a-pentamethyl-1h,2h,3h,3bh,4h,7h,8h,9h,9ah,11h-cyclopenta[a]phenanthren-10-one

(1r,2r,3as,3bs,7s,8s,9ar,9br,11ar)-1-[(2r)-2,6-dihydroxy-6-methyl-3-oxoheptan-2-yl]-2,7,8-trihydroxy-3a,6,6,9b,11a-pentamethyl-1h,2h,3h,3bh,4h,7h,8h,9h,9ah,11h-cyclopenta[a]phenanthren-10-one

C30H48O7 (520.3399858)