In contrast to ethyltestosterone, its 19-demethyl variant, norethandrolone, is a potent AAS comparable in anabolic activity to testosterone propionate.
2.
There are three known analogous structures of ATX which have different toxicity : antillatoxin B ( 8-demethyl-antillatoxin ) and DH-ATX ( 8-demethyl-8, 9-dihydro-antillatoxin ).
3.
There are three known analogous structures of ATX which have different toxicity : antillatoxin B ( 8-demethyl-antillatoxin ) and DH-ATX ( 8-demethyl-8, 9-dihydro-antillatoxin ).
4.
Imine formation is a reversible process, and in the study by Zhu et al ., none of the aldehyde was recovered / detected by GC-MS . Instead, the breakdown products were N-demethyl metabolites.
5.
The root bark of the plant which showed biological activities have also shown to contain a potent cytotoxic and antioxidant diterpene, 11, 12, 16-trihydroxy-2-oxo-5-methyl-10-demethyl-abieta-1 [ 10 ], 6, 8, 11, 13-pentene.
6.
"' 19-Norpregnane "', also known as "'13?-methyl-17?-ethylgonane "', is a norsteroid and the 19-demethyl derivatives of it such as the progestins demegestone, gestonorone caproate ( gestronol hexanoate ), nomegestrol acetate, norgestomet, promegestone, segesterone acetate ( nestorone ), and trimegestone.
7.
Glucose is transformed to NTP-L-ristoamine by StaA / B / E / J / I / K which is then added on to the staurosporine aglycone at 1 indole N by StaG . The StaN enzyme reorients the sugar by attaching it to the 2nd indole nitrogen into an unfavored conformation to form intermediated O-demethyl-N-demethyl-staurosporine.
8.
Glucose is transformed to NTP-L-ristoamine by StaA / B / E / J / I / K which is then added on to the staurosporine aglycone at 1 indole N by StaG . The StaN enzyme reorients the sugar by attaching it to the 2nd indole nitrogen into an unfavored conformation to form intermediated O-demethyl-N-demethyl-staurosporine.
9.
SC-5233 ( 6, 7-dihydrocanrenone ), the C17? propanoic acid lactone of testosterone ( androst-4-en-17?-ol-3-one ), is the unsubstituted parent or prototype compound of the spirolactones, and is one of a few of the simplest members of the series along with SC-8109 ( the 19-demethyl analogue of SC-5233 ) and canrenone ( the 1, 2-didehydro analogue of SC-5233 ).
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